{"id":"CVE-2022-41938","aliases":["EUVD-2022-7273","GHSA-7x4w-j98p-854x"],"status":"published","title":"Cross site scripting vulnerability with discussion titles in flarum","description":"Flarum is an open source discussion platform. Flarum's page title system allowed for page titles to be converted into HTML DOM nodes when pages were rendered. The change was made after `v1.5` and was not noticed. This allowed an attacker to inject malicious HTML markup using a discussion title input, either by creating a new discussion or renaming one. The XSS attack occurs after a visitor opens the relevant discussion page. All communities running Flarum from `v1.5.0` to `v1.6.1` are impacted. The vulnerability has been fixed and published as flarum/core `v1.6.2`. All communities running Flarum from `v1.5.0` to `v1.6.1` have to upgrade as soon as possible to v1.6.2. There are no known workarounds for this issue.","severity":{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00753,"percentile":0.5539,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2022-11-19T00:00:00Z","modified":"2026-10-28T02:30:33Z","fixes":[{"ecosystem":"Packagist","package":"flarum/core","fixed_in":["1.6.2"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"flarum/core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.5.0"},{"fixed":"1.6.2"}]}]},{"source":"osv","ecosystem":"Packagist","package":"flarum/core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.5.0"},{"fixed":"1.6.2"}]}],"versions":["v1.5.0","v1.6.0","v1.6.1"]}],"products":[{"vendor":"flarum","product":"flarum"},{"vendor":"flarum","product":"framework"}],"references":[{"url":"https://github.com/flarum/framework/security/advisories/GHSA-7x4w-j98p-854x","tags":["x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://github.com/flarum/framework/commit/690de9ce0ffe7ac4d45b73e303f44340c3433138","tags":["x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://discuss.flarum.org/d/27558","tags":["x_transferred","Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-41938","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-7x4w-j98p-854x"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/41xxx/CVE-2022-41938.json","tags":["advisory"]},{"url":"https://github.com/flarum/framework","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2022-41938","title":"Cross site scripting vulnerability with discussion titles in flarum","description":"Flarum is an open source discussion platform. Flarum's page title system allowed for page titles to be converted into HTML DOM nodes when pages were rendered. The change was made after `v1.5` and was not noticed. This allowed an attacker to inject malicious HTML markup using a discussion title input, either by creating a new discussion or renaming one. The XSS attack occurs after a visitor opens the relevant discussion page. All communities running Flarum from `v1.5.0` to `v1.6.1` are impacted. The vulnerability has been fixed and published as flarum/core `v1.6.2`. All communities running Flarum from `v1.5.0` to `v1.6.1` have to upgrade as soon as possible to v1.6.2. There are no known workarounds for this issue.","status":"published","published":"2022-11-19T00:00:00Z","modified":"2025-04-23T16:36:43.774Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:34:27.640972Z"}],"euvd":[{"id":"EUVD-2022-7273","description":"Flarum is an open source discussion platform. Flarum's page title system allowed for page titles to be converted into HTML DOM nodes when pages were rendered. The change was made after `v1.5` and was not noticed. This allowed an attacker to inject malicious HTML markup using a discussion title input, either by creating a new discussion or renaming one. The XSS attack occurs after a visitor opens the relevant discussion page. All communities running Flarum from `v1.5.0` to `v1.6.1` are impacted. The vulnerability has been fixed and published as flarum/core `v1.6.2`. All communities running Flarum from `v1.5.0` to `v1.6.1` have to upgrade as soon as possible to v1.6.2. There are no known workarounds for this issue.","status":"published","published":"2022-11-19T00:00:00Z","modified":"2025-04-23T16:36:43Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T20:52:12.313971Z"}],"ghsa":[{"id":"GHSA-7x4w-j98p-854x","title":"Cross site scripting vulnerability with discussion titles","description":"Flarum's page title system allowed for page titles to be converted into HTML DOM nodes when pages were rendered. The change was made after `v1.5` and was not noticed.\n\nThis allowed an attacker to inject malicious HTML markup using a discussion title input, either by creating a new discussion or renaming one. The XSS attack occurs after a visitor opens the relevant discussion page.\n\n### Impact\nAll communities running Flarum from `v1.5.0` to `v1.6.1` are impacted.\n\n### Patches\nThe vulnerability has been fixed and published as flarum/core `v1.6.2`. All communities running Flarum from `v1.5.0` to `v1.6.1` have to upgrade as soon as possible to v1.6.2 using:\n\n```\ncomposer update --prefer-dist --no-dev -a -W\n```\n\nYou can then confirm you run the latest version using:\n\n```\ncomposer show flarum/core\n```\n\n### Workarounds\n**None**\n\n### For more information\nFor any questions or comments on this vulnerability please visit https://discuss.flarum.org/d/27558.\n\nFor support questions create a discussion at https://discuss.flarum.org/t/support.\n\nA reminder that if you ever become aware of a security issue in Flarum, please report it to us privately by emailing [security@flarum.org](mailto:security@flarum.org), and we will address it promptly.\n","status":"published","published":"2022-11-21T23:53:32Z","modified":"2023-01-31T05:08:01Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:36:29.957996Z"}],"nvd":[{"id":"CVE-2022-41938","description":"Flarum is an open source discussion platform. Flarum's page title system allowed for page titles to be converted into HTML DOM nodes when pages were rendered. The change was made after `v1.5` and was not noticed. This allowed an attacker to inject malicious HTML markup using a discussion title input, either by creating a new discussion or renaming one. The XSS attack occurs after a visitor opens the relevant discussion page. All communities running Flarum from `v1.5.0` to `v1.6.1` are impacted. The vulnerability has been fixed and published as flarum/core `v1.6.2`. All communities running Flarum from `v1.5.0` to `v1.6.1` have to upgrade as soon as possible to v1.6.2. There are no known workarounds for this issue.","status":"published","published":"2022-11-19T01:15:10.383Z","modified":"2026-06-17T05:04:05.973Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:07:32.395456Z"}],"osv":[{"id":"CVE-2022-41938","title":"Cross site scripting vulnerability with discussion titles in flarum","description":"Flarum is an open source discussion platform. Flarum's page title system allowed for page titles to be converted into HTML DOM nodes when pages were rendered. The change was made after `v1.5` and was not noticed. This allowed an attacker to inject malicious HTML markup using a discussion title input, either by creating a new discussion or renaming one. The XSS attack occurs after a visitor opens the relevant discussion page. All communities running Flarum from `v1.5.0` to `v1.6.1` are impacted. The vulnerability has been fixed and published as flarum/core `v1.6.2`. All communities running Flarum from `v1.5.0` to `v1.6.1` have to upgrade as soon as possible to v1.6.2. There are no known workarounds for this issue.","status":"published","published":"2022-11-19T00:00:00Z","modified":"2026-10-28T02:30:33.063490133Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:44:27.186787Z"},{"id":"GHSA-7x4w-j98p-854x","title":"Cross site scripting vulnerability with discussion titles","description":"Flarum's page title system allowed for page titles to be converted into HTML DOM nodes when pages were rendered. The change was made after `v1.5` and was not noticed.\n\nThis allowed an attacker to inject malicious HTML markup using a discussion title input, either by creating a new discussion or renaming one. The XSS attack occurs after a visitor opens the relevant discussion page.\n\n### Impact\nAll communities running Flarum from `v1.5.0` to `v1.6.1` are impacted.\n\n### Patches\nThe vulnerability has been fixed and published as flarum/core `v1.6.2`. All communities running Flarum from `v1.5.0` to `v1.6.1` have to upgrade as soon as possible to v1.6.2 using:\n\n```\ncomposer update --prefer-dist --no-dev -a -W\n```\n\nYou can then confirm you run the latest version using:\n\n```\ncomposer show flarum/core\n```\n\n### Workarounds\n**None**\n\n### For more information\nFor any questions or comments on this vulnerability please visit https://discuss.flarum.org/d/27558.\n\nFor support questions create a discussion at https://discuss.flarum.org/t/support.\n\nA reminder that if you ever become aware of a security issue in Flarum, please report it to us privately by emailing [security@flarum.org](mailto:security@flarum.org), and we will address it promptly.\n","status":"published","published":"2022-11-21T23:53:32Z","modified":"2023-11-08T04:10:36.609534Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:41.732368Z"}]}}