{"id":"CVE-2024-26152","aliases":["EUVD-2024-0544","GHSA-6xv9-957j-qfhg","PYSEC-2024-249"],"status":"published","title":"Label Studio vulnerable to Cross-site Scripting if `\u003cChoices\u003e` or `\u003cLabels\u003e` are used in labeling config","description":"### Summary\nOn all Label Studio versions prior to 1.11.0, data imported via file upload feature is not properly sanitized prior to being rendered within a [`Choices`](https://labelstud.io/tags/choices) or [`Labels`](https://labelstud.io/tags/labels) tag, resulting in an XSS vulnerability.\n\n### Details\nNeed permission to use the \"data import\" function. This was reproduced on Label Studio 1.10.1.\n\n### PoC\n\n1. Create a project.\n![Create a project](https://github.com/HumanSignal/label-studio/assets/3943358/9b1536ad-feac-4238-a1bd-ca9b1b798673)\n\n2. Upload a file containing the payload using the \"Upload Files\" function.\n![2  Upload a file containing the payload using the Upload Files function](https://github.com/HumanSignal/label-studio/assets/3943358/26bb7af1-1cd2-408f-9adf-61e31a5b7328)\n![3  complete](https://github.com/HumanSignal/label-studio/assets/3943358/f2f62774-1fa6-4456-9e6f-8fa1ca0a2d2e)\n\nThe following are the contents of the files used in the PoC\n```\n{\n  \"data\": {\n    \"prompt\": \"labelstudio universe image\",\n    \"images\": [\n      {\n        \"value\": \"id123#0\",\n        \"style\": \"margin: 5px\",\n        \"html\": \"\u003cimg width='400' src='https://labelstud.io/_astro/images-tab.64279c16_ZaBSvC.avif' onload=alert(document.cookie)\u003e\"\n      }\n    ]\n  }\n}\n```\n\n3. Select the text-to-image generation labeling template of Ranking and scoring\n![3  Select the text-to-image generation labelling template for Ranking and scoring](https://github.com/HumanSignal/label-studio/assets/3943358/f227f49c-a718-4738-bc2a-807da4f97155)\n![5  save](https://github.com/HumanSignal/label-studio/assets/3943358/9b529f8a-8e99-4bb0-bdf6-bb7a95c9b75d)\n\n4. Select a task\n![4  Select a task](https://github.com/HumanSignal/label-studio/assets/3943358/71856b7a-2b1f-44ea-99ab-fc48bc20caa7)\n\n5. Check that the script is running\n![5  Check that the script is running](https://github.com/HumanSignal/label-studio/assets/3943358/e396ae7b-a591-4db7-afe9-5bab30b48cb9)\n\n### Impact\nMalicious scripts can be injected into the code, and when linked with vulnerabilities such as CSRF, it can cause even greater damage. In particular, It can become a source of further attacks, especially when linked to social engineering.","severity":{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.02199,"percentile":0.82659,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2024-02-22T21:52:26Z","modified":"2026-10-28T02:30:43Z","fixes":[{"ecosystem":"PyPI","package":"label-studio","fixed_in":["1.11.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"label-studio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.11.0"}]}]},{"source":"osv","ecosystem":"PyPI","package":"label-studio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.11.0"}]}],"versions":["0.4.1","0.4.2","0.4.3","0.4.4","0.4.4.post1","0.4.4.post2","0.4.5","0.4.6","0.4.6.post1","0.4.6.post2","0.4.7","0.4.8","0.5.0","0.5.1","0.6.0","0.6.1","0.7.0","0.7.1","0.7.2","0.7.3","0.7.4","0.7.4.post0","0.7.4.post1","0.7.5.post1","0.7.5.post2","0.8.0","0.8.0.post0","0.8.1","0.8.1.post0","0.8.2","0.8.2.post0","0.9.0","0.9.0.post2","0.9.0.post3","0.9.0.post4","0.9.0.post5","0.9.1","0.9.1.post0","0.9.1.post1","0.9.1.post2","1.0.0","1.0.0.post0","1.0.0.post1","1.0.0.post2","1.0.0.post3","1.0.1","1.0.2","1.0.2.post0","1.1.0","1.1.0rc0","1.1.1","1.10.0","1.10.0.post0","1.10.1","1.2","1.3","1.3.post0","1.3.post1","1.4","1.4.1","1.4.1.post0","1.4.1.post1","1.5.0","1.5.0.post0","1.6.0","1.7.0","1.7.1","1.7.2","1.7.3","1.8.0","1.8.1","1.8.2","1.8.2.post0","1.8.2.post1","1.9.0","1.9.1","1.9.1.post0","1.9.2","1.9.2.post0"]},{"source":"osv","ecosystem":"PyPI","package":"label-studio","ranges":[{"type":"GIT","events":[{"introduced":"0"},{"fixed":"5df9ae3828b98652e9fa290a19f4deedf51ef6c8"}]},{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.11.0"}]}],"versions":["0.4.1","0.4.2","0.4.3","0.4.4","0.4.4.post1","0.4.4.post2","0.4.5","0.4.6","0.4.6.post1","0.4.6.post2","0.4.7","0.4.8","0.5.0","0.5.1","0.6.0","0.6.1","0.7.0","0.7.1","0.7.2","0.7.3","0.7.4","0.7.4.post0","0.7.4.post1","0.7.5.post1","0.7.5.post2","0.8.0","0.8.0.post0","0.8.1","0.8.1.post0","0.8.2","0.8.2.post0","0.9.0","0.9.0.post2","0.9.0.post3","0.9.0.post4","0.9.0.post5","0.9.1","0.9.1.post0","0.9.1.post1","0.9.1.post2","1.0.0","1.0.0.post0","1.0.0.post1","1.0.0.post2","1.0.0.post3","1.0.1","1.0.2","1.0.2.post0","1.1.0","1.1.0rc0","1.1.1","1.10.0","1.10.0.post0","1.10.1","1.2","1.3","1.3.post0","1.3.post1","1.4","1.4.1","1.4.1.post0","1.4.1.post1","1.5.0","1.5.0.post0","1.6.0","1.7.0","1.7.1","1.7.2","1.7.3","1.8.0","1.8.1","1.8.2","1.8.2.post0","1.8.2.post1","1.9.0","1.9.1","1.9.1.post0","1.9.2","1.9.2.post0","v1.4.1","v1.4.0","v1.3.0","v1.2.0","v1.1.1","v1.1.0","v1.0.2","v1.0.1","v1.0.0","v0.9.1.post1","v0.9.1.post0","v0.9.0.post5","v0.9.0.post4","v0.9.0.post3","v0.9.0","v0.8.2","v0.8.1","v0.8.0","v0.7.5.post0","v0.7.3","v0.7.2","v0.7.1","v0.7.0","v0.6.1","v0.6.0","v0.5.1","v0.4.8","v0.4.7","v0.4.6","v0.4.5","v0.4.4","v0.4.0","v0.3.0","v0.2.2","v.0.2.1-8","v.0.2.1-5","v.0.2.1-4","v.0.2.1-3","v.0.2.1-2","v.0.2.0","v.0.1.6","v.0.1.5","v.0.1.4","v.0.1.2","v.0.1.1","v.0.1.0"]}],"products":[{"vendor":"humansignal","product":"label-studio"},{"vendor":"humansignal","product":"label_studio"}],"references":[{"url":"https://github.com/HumanSignal/label-studio/security/advisories/GHSA-6xv9-957j-qfhg","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Vendor Advisory","advisory","web","evidence"]},{"url":"https://github.com/HumanSignal/label-studio/pull/5232","tags":["x_refsource_MISC","x_transferred","Patch","fix","web"]},{"url":"https://github.com/HumanSignal/label-studio/commit/5df9ae3828b98652e9fa290a19f4deedf51ef6c8","tags":["x_refsource_MISC","x_transferred","Patch","fix","web"]},{"url":"https://github.com/HumanSignal/label-studio/releases/tag/1.11.0","tags":["x_refsource_MISC","x_transferred","Release Notes","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-26152","tags":["advisory"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/label-studio/PYSEC-2024-249.yaml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-6xv9-957j-qfhg","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26152.json","tags":["advisory"]},{"url":"https://github.com/HumanSignal/label-studio","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2024-26152","title":"Label Studio vulnerable to Cross-site Scripting if `\u003cChoices\u003e` or `\u003cLabels\u003e` are used in labeling config ","description":"### Summary\nOn all Label Studio versions prior to 1.11.0, data imported via file upload feature is not properly sanitized prior to being rendered within a [`Choices`](https://labelstud.io/tags/choices) or [`Labels`](https://labelstud.io/tags/labels) tag, resulting in an XSS vulnerability.\n\n### Details\nNeed permission to use the \"data import\" function. This was reproduced on Label Studio 1.10.1.\n\n### PoC\n\n1. Create a project.\n![Create a project](https://github.com/HumanSignal/label-studio/assets/3943358/9b1536ad-feac-4238-a1bd-ca9b1b798673)\n\n2. Upload a file containing the payload using the \"Upload Files\" function.\n![2  Upload a file containing the payload using the Upload Files function](https://github.com/HumanSignal/label-studio/assets/3943358/26bb7af1-1cd2-408f-9adf-61e31a5b7328)\n![3  complete](https://github.com/HumanSignal/label-studio/assets/3943358/f2f62774-1fa6-4456-9e6f-8fa1ca0a2d2e)\n\nThe following are the contents of the files used in the PoC\n```\n{\n  \"data\": {\n    \"prompt\": \"labelstudio universe image\",\n    \"images\": [\n      {\n        \"value\": \"id123#0\",\n        \"style\": \"margin: 5px\",\n        \"html\": \"\u003cimg width='400' src='https://labelstud.io/_astro/images-tab.64279c16_ZaBSvC.avif' onload=alert(document.cookie)\u003e\"\n      }\n    ]\n  }\n}\n```\n\n3. Select the text-to-image generation labeling template of Ranking and scoring\n![3  Select the text-to-image generation labelling template for Ranking and scoring](https://github.com/HumanSignal/label-studio/assets/3943358/f227f49c-a718-4738-bc2a-807da4f97155)\n![5  save](https://github.com/HumanSignal/label-studio/assets/3943358/9b529f8a-8e99-4bb0-bdf6-bb7a95c9b75d)\n\n4. Select a task\n![4  Select a task](https://github.com/HumanSignal/label-studio/assets/3943358/71856b7a-2b1f-44ea-99ab-fc48bc20caa7)\n\n5. Check that the script is running\n![5  Check that the script is running](https://github.com/HumanSignal/label-studio/assets/3943358/e396ae7b-a591-4db7-afe9-5bab30b48cb9)\n\n### Impact\nMalicious scripts can be injected into the code, and when linked with vulnerabilities such as CSRF, it can cause even greater damage. In particular, It can become a source of further attacks, especially when linked to social engineering.\n","status":"published","published":"2024-02-22T21:52:26.193Z","modified":"2024-08-14T15:32:05.054Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:33:59.884489Z"}],"euvd":[{"id":"EUVD-2024-0544","description":"### Summary\nOn all Label Studio versions prior to 1.11.0, data imported via file upload feature is not properly sanitized prior to being rendered within a [`Choices`](https://labelstud.io/tags/choices) or [`Labels`](https://labelstud.io/tags/labels) tag, resulting in an XSS vulnerability.\n\n### Details\nNeed permission to use the \"data import\" function. This was reproduced on Label Studio 1.10.1.\n\n### PoC\n\n1. Create a project.\n![Create a project](https://github.com/HumanSignal/label-studio/assets/3943358/9b1536ad-feac-4238-a1bd-ca9b1b798673)\n\n2. Upload a file containing the payload using the \"Upload Files\" function.\n![2  Upload a file containing the payload using the Upload Files function](https://github.com/HumanSignal/label-studio/assets/3943358/26bb7af1-1cd2-408f-9adf-61e31a5b7328)\n![3  complete](https://github.com/HumanSignal/label-studio/assets/3943358/f2f62774-1fa6-4456-9e6f-8fa1ca0a2d2e)\n\nThe following are the contents of the files used in the PoC\n```\n{\n  \"data\": {\n    \"prompt\": \"labelstudio universe image\",\n    \"images\": [\n      {\n        \"value\": \"id123#0\",\n        \"style\": \"margin: 5px\",\n        \"html\": \"\u003cimg width='400' src='https://labelstud.io/_astro/images-tab.64279c16_ZaBSvC.avif' onload=alert(document.cookie)\u003e\"\n      }\n    ]\n  }\n}\n```\n\n3. Select the text-to-image generation labeling template of Ranking and scoring\n![3  Select the text-to-image generation labelling template for Ranking and scoring](https://github.com/HumanSignal/label-studio/assets/3943358/f227f49c-a718-4738-bc2a-807da4f97155)\n![5  save](https://github.com/HumanSignal/label-studio/assets/3943358/9b529f8a-8e99-4bb0-bdf6-bb7a95c9b75d)\n\n4. Select a task\n![4  Select a task](https://github.com/HumanSignal/label-studio/assets/3943358/71856b7a-2b1f-44ea-99ab-fc48bc20caa7)\n\n5. Check that the script is running\n![5  Check that the script is running](https://github.com/HumanSignal/label-studio/assets/3943358/e396ae7b-a591-4db7-afe9-5bab30b48cb9)\n\n### Impact\nMalicious scripts can be injected into the code, and when linked with vulnerabilities such as CSRF, it can cause even greater damage. In particular, It can become a source of further attacks, especially when linked to social engineering.\n","status":"published","published":"2024-02-22T21:52:26Z","modified":"2024-08-14T15:32:05Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T00:56:18.14573Z"}],"ghsa":[{"id":"GHSA-6xv9-957j-qfhg","title":"Label Studio vulnerable to Cross-site Scripting if `\u003cChoices\u003e` or `\u003cLabels\u003e` are used in labeling config ","description":"### Summary\nOn all Label Studio versions prior to 1.11.0, data imported via file upload feature is not properly sanitized prior to being rendered within a [`Choices`](https://labelstud.io/tags/choices) or [`Labels`](https://labelstud.io/tags/labels) tag, resulting in an XSS vulnerability.\n\n### Details\nNeed permission to use the \"data import\" function. This was reproduced on Label Studio 1.10.1.\n\n### PoC\n\n1. Create a project.\n![Create a project](https://github.com/HumanSignal/label-studio/assets/3943358/9b1536ad-feac-4238-a1bd-ca9b1b798673)\n\n2. Upload a file containing the payload using the \"Upload Files\" function.\n![2  Upload a file containing the payload using the Upload Files function](https://github.com/HumanSignal/label-studio/assets/3943358/26bb7af1-1cd2-408f-9adf-61e31a5b7328)\n![3  complete](https://github.com/HumanSignal/label-studio/assets/3943358/f2f62774-1fa6-4456-9e6f-8fa1ca0a2d2e)\n\nThe following are the contents of the files used in the PoC\n```\n{\n  \"data\": {\n    \"prompt\": \"labelstudio universe image\",\n    \"images\": [\n      {\n        \"value\": \"id123#0\",\n        \"style\": \"margin: 5px\",\n        \"html\": \"\u003cimg width='400' src='https://labelstud.io/_astro/images-tab.64279c16_ZaBSvC.avif' onload=alert(document.cookie)\u003e\"\n      }\n    ]\n  }\n}\n```\n\n3. Select the text-to-image generation labeling template of Ranking and scoring\n![3  Select the text-to-image generation labelling template for Ranking and scoring](https://github.com/HumanSignal/label-studio/assets/3943358/f227f49c-a718-4738-bc2a-807da4f97155)\n![5  save](https://github.com/HumanSignal/label-studio/assets/3943358/9b529f8a-8e99-4bb0-bdf6-bb7a95c9b75d)\n\n4. Select a task\n![4  Select a task](https://github.com/HumanSignal/label-studio/assets/3943358/71856b7a-2b1f-44ea-99ab-fc48bc20caa7)\n\n5. Check that the script is running\n![5  Check that the script is running](https://github.com/HumanSignal/label-studio/assets/3943358/e396ae7b-a591-4db7-afe9-5bab30b48cb9)\n\n### Impact\nMalicious scripts can be injected into the code, and when linked with vulnerabilities such as CSRF, it can cause even greater damage. In particular, It can become a source of further attacks, especially when linked to social engineering.","status":"published","published":"2024-02-22T21:52:57Z","modified":"2026-03-24T05:07:28Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:39:40.633038Z"}],"nvd":[{"id":"CVE-2024-26152","description":"### Summary\nOn all Label Studio versions prior to 1.11.0, data imported via file upload feature is not properly sanitized prior to being rendered within a [`Choices`](https://labelstud.io/tags/choices) or [`Labels`](https://labelstud.io/tags/labels) tag, resulting in an XSS vulnerability.\n\n### Details\nNeed permission to use the \"data import\" function. This was reproduced on Label Studio 1.10.1.\n\n### PoC\n\n1. Create a project.\n![Create a project](https://github.com/HumanSignal/label-studio/assets/3943358/9b1536ad-feac-4238-a1bd-ca9b1b798673)\n\n2. Upload a file containing the payload using the \"Upload Files\" function.\n![2  Upload a file containing the payload using the Upload Files function](https://github.com/HumanSignal/label-studio/assets/3943358/26bb7af1-1cd2-408f-9adf-61e31a5b7328)\n![3  complete](https://github.com/HumanSignal/label-studio/assets/3943358/f2f62774-1fa6-4456-9e6f-8fa1ca0a2d2e)\n\nThe following are the contents of the files used in the PoC\n```\n{\n  \"data\": {\n    \"prompt\": \"labelstudio universe image\",\n    \"images\": [\n      {\n        \"value\": \"id123#0\",\n        \"style\": \"margin: 5px\",\n        \"html\": \"\u003cimg width='400' src='https://labelstud.io/_astro/images-tab.64279c16_ZaBSvC.avif' onload=alert(document.cookie)\u003e\"\n      }\n    ]\n  }\n}\n```\n\n3. Select the text-to-image generation labeling template of Ranking and scoring\n![3  Select the text-to-image generation labelling template for Ranking and scoring](https://github.com/HumanSignal/label-studio/assets/3943358/f227f49c-a718-4738-bc2a-807da4f97155)\n![5  save](https://github.com/HumanSignal/label-studio/assets/3943358/9b529f8a-8e99-4bb0-bdf6-bb7a95c9b75d)\n\n4. Select a task\n![4  Select a task](https://github.com/HumanSignal/label-studio/assets/3943358/71856b7a-2b1f-44ea-99ab-fc48bc20caa7)\n\n5. Check that the script is running\n![5  Check that the script is running](https://github.com/HumanSignal/label-studio/assets/3943358/e396ae7b-a591-4db7-afe9-5bab30b48cb9)\n\n### Impact\nMalicious scripts can be injected into the code, and when linked with vulnerabilities such as CSRF, it can cause even greater damage. In particular, It can become a source of further attacks, especially when linked to social engineering.\n","status":"published","published":"2024-02-22T22:15:47.31Z","modified":"2026-06-17T07:17:12.57Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:09:37.655131Z"}],"osv":[{"id":"CVE-2024-26152","title":"Label Studio vulnerable to Cross-site Scripting if `\u003cChoices\u003e` or `\u003cLabels\u003e` are used in labeling config ","description":"### Summary\nOn all Label Studio versions prior to 1.11.0, data imported via file upload feature is not properly sanitized prior to being rendered within a [`Choices`](https://labelstud.io/tags/choices) or [`Labels`](https://labelstud.io/tags/labels) tag, resulting in an XSS vulnerability.\n\n### Details\nNeed permission to use the \"data import\" function. This was reproduced on Label Studio 1.10.1.\n\n### PoC\n\n1. Create a project.\n![Create a project](https://github.com/HumanSignal/label-studio/assets/3943358/9b1536ad-feac-4238-a1bd-ca9b1b798673)\n\n2. Upload a file containing the payload using the \"Upload Files\" function.\n![2  Upload a file containing the payload using the Upload Files function](https://github.com/HumanSignal/label-studio/assets/3943358/26bb7af1-1cd2-408f-9adf-61e31a5b7328)\n![3  complete](https://github.com/HumanSignal/label-studio/assets/3943358/f2f62774-1fa6-4456-9e6f-8fa1ca0a2d2e)\n\nThe following are the contents of the files used in the PoC\n```\n{\n  \"data\": {\n    \"prompt\": \"labelstudio universe image\",\n    \"images\": [\n      {\n        \"value\": \"id123#0\",\n        \"style\": \"margin: 5px\",\n        \"html\": \"\u003cimg width='400' src='https://labelstud.io/_astro/images-tab.64279c16_ZaBSvC.avif' onload=alert(document.cookie)\u003e\"\n      }\n    ]\n  }\n}\n```\n\n3. Select the text-to-image generation labeling template of Ranking and scoring\n![3  Select the text-to-image generation labelling template for Ranking and scoring](https://github.com/HumanSignal/label-studio/assets/3943358/f227f49c-a718-4738-bc2a-807da4f97155)\n![5  save](https://github.com/HumanSignal/label-studio/assets/3943358/9b529f8a-8e99-4bb0-bdf6-bb7a95c9b75d)\n\n4. Select a task\n![4  Select a task](https://github.com/HumanSignal/label-studio/assets/3943358/71856b7a-2b1f-44ea-99ab-fc48bc20caa7)\n\n5. Check that the script is running\n![5  Check that the script is running](https://github.com/HumanSignal/label-studio/assets/3943358/e396ae7b-a591-4db7-afe9-5bab30b48cb9)\n\n### Impact\nMalicious scripts can be injected into the code, and when linked with vulnerabilities such as CSRF, it can cause even greater damage. In particular, It can become a source of further attacks, especially when linked to social engineering.\n","status":"published","published":"2024-02-22T21:52:26.193Z","modified":"2026-10-28T02:30:43.104630388Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:44:39.244433Z"},{"id":"GHSA-6xv9-957j-qfhg","title":"Label Studio vulnerable to Cross-site Scripting if `\u003cChoices\u003e` or `\u003cLabels\u003e` are used in labeling config ","description":"### Summary\nOn all Label Studio versions prior to 1.11.0, data imported via file upload feature is not properly sanitized prior to being rendered within a [`Choices`](https://labelstud.io/tags/choices) or [`Labels`](https://labelstud.io/tags/labels) tag, resulting in an XSS vulnerability.\n\n### Details\nNeed permission to use the \"data import\" function. This was reproduced on Label Studio 1.10.1.\n\n### PoC\n\n1. Create a project.\n![Create a project](https://github.com/HumanSignal/label-studio/assets/3943358/9b1536ad-feac-4238-a1bd-ca9b1b798673)\n\n2. Upload a file containing the payload using the \"Upload Files\" function.\n![2  Upload a file containing the payload using the Upload Files function](https://github.com/HumanSignal/label-studio/assets/3943358/26bb7af1-1cd2-408f-9adf-61e31a5b7328)\n![3  complete](https://github.com/HumanSignal/label-studio/assets/3943358/f2f62774-1fa6-4456-9e6f-8fa1ca0a2d2e)\n\nThe following are the contents of the files used in the PoC\n```\n{\n  \"data\": {\n    \"prompt\": \"labelstudio universe image\",\n    \"images\": [\n      {\n        \"value\": \"id123#0\",\n        \"style\": \"margin: 5px\",\n        \"html\": \"\u003cimg width='400' src='https://labelstud.io/_astro/images-tab.64279c16_ZaBSvC.avif' onload=alert(document.cookie)\u003e\"\n      }\n    ]\n  }\n}\n```\n\n3. Select the text-to-image generation labeling template of Ranking and scoring\n![3  Select the text-to-image generation labelling template for Ranking and scoring](https://github.com/HumanSignal/label-studio/assets/3943358/f227f49c-a718-4738-bc2a-807da4f97155)\n![5  save](https://github.com/HumanSignal/label-studio/assets/3943358/9b529f8a-8e99-4bb0-bdf6-bb7a95c9b75d)\n\n4. Select a task\n![4  Select a task](https://github.com/HumanSignal/label-studio/assets/3943358/71856b7a-2b1f-44ea-99ab-fc48bc20caa7)\n\n5. Check that the script is running\n![5  Check that the script is running](https://github.com/HumanSignal/label-studio/assets/3943358/e396ae7b-a591-4db7-afe9-5bab30b48cb9)\n\n### Impact\nMalicious scripts can be injected into the code, and when linked with vulnerabilities such as CSRF, it can cause even greater damage. In particular, It can become a source of further attacks, especially when linked to social engineering.","status":"published","published":"2024-02-22T21:52:57Z","modified":"2026-06-10T17:14:16.370035786Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:40.308826Z"},{"id":"PYSEC-2024-249","description":"### Summary\nOn all Label Studio versions prior to 1.11.0, data imported via file upload feature is not properly sanitized prior to being rendered within a [`Choices`](https://labelstud.io/tags/choices) or [`Labels`](https://labelstud.io/tags/labels) tag, resulting in an XSS vulnerability.\n\n### Details\nNeed permission to use the \"data import\" function. This was reproduced on Label Studio 1.10.1.\n\n### PoC\n\n1. Create a project.\n![Create a project](https://github.com/HumanSignal/label-studio/assets/3943358/9b1536ad-feac-4238-a1bd-ca9b1b798673)\n\n2. Upload a file containing the payload using the \"Upload Files\" function.\n![2  Upload a file containing the payload using the Upload Files function](https://github.com/HumanSignal/label-studio/assets/3943358/26bb7af1-1cd2-408f-9adf-61e31a5b7328)\n![3  complete](https://github.com/HumanSignal/label-studio/assets/3943358/f2f62774-1fa6-4456-9e6f-8fa1ca0a2d2e)\n\nThe following are the contents of the files used in the PoC\n```\n{\n  \"data\": {\n    \"prompt\": \"labelstudio universe image\",\n    \"images\": [\n      {\n        \"value\": \"id123#0\",\n        \"style\": \"margin: 5px\",\n        \"html\": \"\u003cimg width='400' src='https://labelstud.io/_astro/images-tab.64279c16_ZaBSvC.avif' onload=alert(document.cookie)\u003e\"\n      }\n    ]\n  }\n}\n```\n\n3. Select the text-to-image generation labeling template of Ranking and scoring\n![3  Select the text-to-image generation labelling template for Ranking and scoring](https://github.com/HumanSignal/label-studio/assets/3943358/f227f49c-a718-4738-bc2a-807da4f97155)\n![5  save](https://github.com/HumanSignal/label-studio/assets/3943358/9b529f8a-8e99-4bb0-bdf6-bb7a95c9b75d)\n\n4. Select a task\n![4  Select a task](https://github.com/HumanSignal/label-studio/assets/3943358/71856b7a-2b1f-44ea-99ab-fc48bc20caa7)\n\n5. Check that the script is running\n![5  Check that the script is running](https://github.com/HumanSignal/label-studio/assets/3943358/e396ae7b-a591-4db7-afe9-5bab30b48cb9)\n\n### Impact\nMalicious scripts can be injected into the code, and when linked with vulnerabilities such as CSRF, it can cause even greater damage. In particular, It can become a source of further attacks, especially when linked to social engineering.\n","status":"published","published":"2024-02-22T22:15:47Z","modified":"2026-06-10T17:14:17.679045024Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:52:54.242332Z"}]}}