{"id":"CVE-2025-29771","aliases":["EUVD-2025-7889","GHSA-vhv4-fh94-jm5x"],"status":"published","title":"HtmlSanitizer vulnerable to XSS when used with contentEditable","description":"HtmlSanitizer is a client-side HTML Sanitizer. Versions prior to 2.0.3 have a cross-site scripting vulnerability when the sanitizer is used with a `contentEditable` element to set the elements `innerHTML` to a sanitized string produced by the package. If the code is particularly crafted to abuse the code beautifier, that runs AFTER sanitation. The issue is patched in version 2.0.3.","severity":{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00404,"percentile":0.34959,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2025-03-14T18:56:24Z","modified":"2026-10-28T02:30:52Z","fixes":[{"ecosystem":"npm","package":"@jitbit/htmlsanitizer","fixed_in":["2.0.3"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"@jitbit/htmlsanitizer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.3"}]}]},{"source":"osv","ecosystem":"npm","package":"@jitbit/htmlsanitizer","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.0.3"}]}]}],"products":[{"vendor":"jitbit","product":"htmlsanitizer"},{"vendor":"mganss","product":"htmlsanitizer"}],"references":[{"url":"https://github.com/jitbit/HtmlSanitizer/security/advisories/GHSA-vhv4-fh94-jm5x","tags":["x_refsource_CONFIRM","advisory","web"]},{"url":"https://github.com/jitbit/HtmlSanitizer/commit/af6d2a78877e7277cd01c825b7fb50edb5956963","tags":["x_refsource_MISC","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-29771","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-vhv4-fh94-jm5x"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/29xxx/CVE-2025-29771.json","tags":["advisory"]},{"url":"https://github.com/jitbit/HtmlSanitizer","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2025-29771","title":"HtmlSanitizer vulnerable to XSS when used with contentEditable","description":"HtmlSanitizer is a client-side HTML Sanitizer. Versions prior to 2.0.3 have a cross-site scripting vulnerability when the sanitizer is used with a `contentEditable` element to set the elements `innerHTML` to a sanitized string produced by the package. If the code is particularly crafted to abuse the code beautifier, that runs AFTER sanitation. The issue is patched in version 2.0.3.","status":"published","published":"2025-03-14T18:56:24.504Z","modified":"2025-03-18T14:26:06.976Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:32:45.797843Z"}],"euvd":[{"id":"EUVD-2025-7889","description":"HtmlSanitizer is a client-side HTML Sanitizer. Versions prior to 2.0.3 have a cross-site scripting vulnerability when the sanitizer is used with a `contentEditable` element to set the elements `innerHTML` to a sanitized string produced by the package. If the code is particularly crafted to abuse the code beautifier, that runs AFTER sanitation. The issue is patched in version 2.0.3.","status":"published","published":"2025-03-14T18:56:24Z","modified":"2025-03-18T14:26:06Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"updated_at":"2026-11-02T20:53:00.87598Z"}],"ghsa":[{"id":"GHSA-vhv4-fh94-jm5x","title":"JS Html Sanitizer allows XSS when used with contentEditable","description":"### Impact\nXSS vulnerability when the sanitizer is used with a `contentEditable` element to set the elements `innerHTML` to a sanitized string produced by the package. If the code is particularly crafted to abuse the code beautifier, that runs AFTER sanitation.\n\n### Patches\nPatched in version 2.0.3","status":"published","published":"2025-03-14T19:54:52Z","modified":"2025-03-14T21:41:27Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:38:34.992855Z"}],"nvd":[{"id":"CVE-2025-29771","description":"HtmlSanitizer is a client-side HTML Sanitizer. Versions prior to 2.0.3 have a cross-site scripting vulnerability when the sanitizer is used with a `contentEditable` element to set the elements `innerHTML` to a sanitized string produced by the package. If the code is particularly crafted to abuse the code beautifier, that runs AFTER sanitation. The issue is patched in version 2.0.3.","status":"published","published":"2025-03-14T19:15:48.847Z","modified":"2026-06-17T09:05:38.583Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:10:53.93104Z"}],"osv":[{"id":"CVE-2025-29771","title":"HtmlSanitizer vulnerable to XSS when used with contentEditable","description":"HtmlSanitizer is a client-side HTML Sanitizer. Versions prior to 2.0.3 have a cross-site scripting vulnerability when the sanitizer is used with a `contentEditable` element to set the elements `innerHTML` to a sanitized string produced by the package. If the code is particularly crafted to abuse the code beautifier, that runs AFTER sanitation. The issue is patched in version 2.0.3.","status":"published","published":"2025-03-14T18:56:24.504Z","modified":"2026-10-28T02:30:52.147439909Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:44:47.708311Z"},{"id":"GHSA-vhv4-fh94-jm5x","title":"JS Html Sanitizer allows XSS when used with contentEditable","description":"### Impact\nXSS vulnerability when the sanitizer is used with a `contentEditable` element to set the elements `innerHTML` to a sanitized string produced by the package. If the code is particularly crafted to abuse the code beautifier, that runs AFTER sanitation.\n\n### Patches\nPatched in version 2.0.3","status":"published","published":"2025-03-14T19:54:52Z","modified":"2025-03-14T21:41:26Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:57.348035Z"}]}}