{"id":"CVE-2024-21908","aliases":["GHSA-5h9g-x5rv-25wg"],"url":"https://o3.security/vulnerability/CVE-2024-21908","summary":"Cross-site scripting vulnerability in TinyMCE","details":"TinyMCE versions before 5.9.0 are affected by a stored cross-site scripting vulnerability. An unauthenticated and remote attacker could insert crafted HTML into the editor resulting in arbitrary JavaScript execution in another user's browser.","published":"2024-01-03T15:38:09.664Z","modified":"2026-08-12T03:51:28.938796543Z","cvss":{"score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":2,"affectedPackages":[{"ecosystem":"npm","name":"tinymce","fixedVersion":"5.9.0"},{"ecosystem":"NuGet","name":"TinyMCE","fixedVersion":"5.9.0"},{"ecosystem":"Packagist","name":"tinymce/tinymce","fixedVersion":"5.9.0"}],"fix":null,"references":[{"type":"WEB","url":"https://nuget.org/packages"},{"type":"WEB","url":"https://www.tiny.cloud/docs/release-notes/release-notes59/#securityfixes"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/21xxx/CVE-2024-21908.json"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-5h9g-x5rv-25wg"},{"type":"ADVISORY","url":"https://github.com/tinymce/tinymce/security/advisories/GHSA-5h9g-x5rv-25wg"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-21908"},{"type":"ADVISORY","url":"https://vulncheck.com/advisories/vc-advisory-GHSA-5h9g-x5rv-25wg"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:28.938796543Z"}}