{"id":"CVE-2023-34245","aliases":["EUVD-2023-1682","GHSA-4882-hxpr-hrvm"],"status":"published","title":"Cross site scripting (XSS) in @udecode/plate-link","description":"@udecode/plate-link is the link handler for the udecode/plate rich-text editor plugin system for Slate \u0026 React. Affected versions of the link plugin and link UI component do not sanitize URLs to prevent use of the `javascript:` scheme. As a result, links with JavaScript URLs can be inserted into the Plate editor through various means, including opening or pasting malicious content. `@udecode/plate-link` 20.0.0 resolves this issue by introducing an `allowedSchemes` option to the link plugin, defaulting to `['http', 'https', 'mailto', 'tel']`. URLs using a scheme that isn't in this list will not be rendered to the DOM. Users are advised to upgrade. Users unable to upgrade are advised to override the `LinkElement` and `PlateFloatingLink` components with implementations that explicitly check the URL scheme before rendering any anchor elements.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00445,"percentile":0.39,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2023-06-09T17:04:23Z","modified":"2026-10-28T02:30:39Z","fixes":[{"ecosystem":"npm","package":"@udecode/plate-link","fixed_in":["20.0.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"@udecode/plate-link","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"20.0.0"}]}]},{"source":"osv","ecosystem":"npm","package":"@udecode/plate-link","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"20.0.0"}]}]}],"products":[{"vendor":"udecode","product":"plate"}],"references":[{"url":"https://github.com/udecode/plate/security/advisories/GHSA-4882-hxpr-hrvm","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://github.com/udecode/plate/commit/93dd5712854660874900ae12e4d8e6ff28089eb7","tags":["x_refsource_MISC","x_transferred","Patch","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-34245","tags":["advisory"]},{"url":"https://github.com/udecode/plate/pull/2240","tags":["web"]},{"url":"https://github.com/advisories/GHSA-4882-hxpr-hrvm"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/34xxx/CVE-2023-34245.json","tags":["advisory"]},{"url":"https://github.com/udecode/plate","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2023-34245","title":"Cross site scripting (XSS) in @udecode/plate-link","description":"@udecode/plate-link is the link handler for the udecode/plate rich-text editor plugin system for Slate \u0026 React. Affected versions of the link plugin and link UI component do not sanitize URLs to prevent use of the `javascript:` scheme. As a result, links with JavaScript URLs can be inserted into the Plate editor through various means, including opening or pasting malicious content. `@udecode/plate-link` 20.0.0 resolves this issue by introducing an `allowedSchemes` option to the link plugin, defaulting to `['http', 'https', 'mailto', 'tel']`. URLs using a scheme that isn't in this list will not be rendered to the DOM. Users are advised to upgrade. Users unable to upgrade are advised to override the `LinkElement` and `PlateFloatingLink` components with implementations that explicitly check the URL scheme before rendering any anchor elements.","status":"published","published":"2023-06-09T17:04:23.815Z","modified":"2025-01-06T18:13:51.501Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:35:35.580545Z"}],"euvd":[{"id":"EUVD-2023-1682","description":"@udecode/plate-link is the link handler for the udecode/plate rich-text editor plugin system for Slate \u0026 React. Affected versions of the link plugin and link UI component do not sanitize URLs to prevent use of the `javascript:` scheme. As a result, links with JavaScript URLs can be inserted into the Plate editor through various means, including opening or pasting malicious content. `@udecode/plate-link` 20.0.0 resolves this issue by introducing an `allowedSchemes` option to the link plugin, defaulting to `['http', 'https', 'mailto', 'tel']`. URLs using a scheme that isn't in this list will not be rendered to the DOM. Users are advised to upgrade. Users unable to upgrade are advised to override the `LinkElement` and `PlateFloatingLink` components with implementations that explicitly check the URL scheme before rendering any anchor elements.","status":"published","published":"2023-06-09T17:04:23Z","modified":"2025-01-06T18:13:51Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-03T00:04:25.578405Z"}],"ghsa":[{"id":"GHSA-4882-hxpr-hrvm","title":"@udecode/plate-link does not sanitize URLs to prevent use of the `javascript:` scheme","description":"### Impact\nAffected versions of the link plugin and link UI component do not sanitize URLs to prevent use of the `javascript:` scheme. As a result, links with JavaScript URLs can be inserted into the Plate editor through various means, including opening or pasting malicious content.\n\n### Patches\n`@udecode/plate-link` 20.0.0 resolves this issue by introducing an `allowedSchemes` option to the link plugin, defaulting to `['http', 'https', 'mailto', 'tel']`. URLs using a scheme that isn't in this list will not be rendered to the DOM.\n\n### Workarounds\nIf you are unable to update `@udecode/plate-link` to version 20.0.0, we recommend overriding the `LinkElement` and `PlateFloatingLink` components with implementations that explicitly check the URL scheme before rendering any anchor elements.\n","status":"published","published":"2023-06-09T22:41:56Z","modified":"2023-11-10T05:04:46Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:37:19.438667Z"}],"nvd":[{"id":"CVE-2023-34245","description":"@udecode/plate-link is the link handler for the udecode/plate rich-text editor plugin system for Slate \u0026 React. Affected versions of the link plugin and link UI component do not sanitize URLs to prevent use of the `javascript:` scheme. As a result, links with JavaScript URLs can be inserted into the Plate editor through various means, including opening or pasting malicious content. `@udecode/plate-link` 20.0.0 resolves this issue by introducing an `allowedSchemes` option to the link plugin, defaulting to `['http', 'https', 'mailto', 'tel']`. URLs using a scheme that isn't in this list will not be rendered to the DOM. Users are advised to upgrade. Users unable to upgrade are advised to override the `LinkElement` and `PlateFloatingLink` components with implementations that explicitly check the URL scheme before rendering any anchor elements.","status":"published","published":"2023-06-09T18:15:09.813Z","modified":"2026-06-17T06:03:12.77Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high","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":"2026-11-02T14:08:05.329837Z"}],"osv":[{"id":"CVE-2023-34245","title":"Cross site scripting (XSS) in @udecode/plate-link","description":"@udecode/plate-link is the link handler for the udecode/plate rich-text editor plugin system for Slate \u0026 React. Affected versions of the link plugin and link UI component do not sanitize URLs to prevent use of the `javascript:` scheme. As a result, links with JavaScript URLs can be inserted into the Plate editor through various means, including opening or pasting malicious content. `@udecode/plate-link` 20.0.0 resolves this issue by introducing an `allowedSchemes` option to the link plugin, defaulting to `['http', 'https', 'mailto', 'tel']`. URLs using a scheme that isn't in this list will not be rendered to the DOM. Users are advised to upgrade. Users unable to upgrade are advised to override the `LinkElement` and `PlateFloatingLink` components with implementations that explicitly check the URL scheme before rendering any anchor elements.","status":"published","published":"2023-06-09T17:04:23.815Z","modified":"2026-10-28T02:30:39.028332669Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:44:32.116263Z"},{"id":"GHSA-4882-hxpr-hrvm","title":"@udecode/plate-link does not sanitize URLs to prevent use of the `javascript:` scheme","description":"### Impact\nAffected versions of the link plugin and link UI component do not sanitize URLs to prevent use of the `javascript:` scheme. As a result, links with JavaScript URLs can be inserted into the Plate editor through various means, including opening or pasting malicious content.\n\n### Patches\n`@udecode/plate-link` 20.0.0 resolves this issue by introducing an `allowedSchemes` option to the link plugin, defaulting to `['http', 'https', 'mailto', 'tel']`. URLs using a scheme that isn't in this list will not be rendered to the DOM.\n\n### Workarounds\nIf you are unable to update `@udecode/plate-link` to version 20.0.0, we recommend overriding the `LinkElement` and `PlateFloatingLink` components with implementations that explicitly check the URL scheme before rendering any anchor elements.\n","status":"published","published":"2023-06-09T22:41:56Z","modified":"2026-09-10T03:50:01.851950637Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:36.782754Z"}]}}