{"id":"CVE-2024-21908","title":"TinyMCE versions before 5.9.0 are affected by a stored cross-site scripting vulnerability","summary":"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 bro…","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cwe":["CWE-79","CWE-79"],"vendor":"tiny","product":"tinymce","affected":["tinymce < 5.9.0"],"patched":["tinymce 5.9.0"],"published":"2024-01-03","updated":"2026-07-14","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2024-21908","references":[{"url":"https://github.com/advisories/GHSA-5h9g-x5rv-25wg","label":"disclosure@vulncheck.com"},{"url":"https://github.com/tinymce/tinymce/security/advisories/GHSA-5h9g-x5rv-25wg","label":"disclosure@vulncheck.com"},{"url":"https://vulncheck.com/advisories/vc-advisory-GHSA-5h9g-x5rv-25wg","label":"disclosure@vulncheck.com"},{"url":"https://www.tiny.cloud/docs/release-notes/release-notes59/#securityfixes","label":"disclosure@vulncheck.com"},{"url":"https://github.com/advisories/GHSA-5h9g-x5rv-25wg","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/tinymce/tinymce/security/advisories/GHSA-5h9g-x5rv-25wg","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://vulncheck.com/advisories/vc-advisory-GHSA-5h9g-x5rv-25wg","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.tiny.cloud/docs/release-notes/release-notes59/#securityfixes","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.01066,"epssPercentile":0.63287,"ingestedAt":"2026-07-14T23:40:04.483Z","slug":"CVE-2024-21908","body":"## Overview\n\nTinyMCE 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.\n\n## Affected\n\n- `tinymce < 5.9.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `tinymce 5.9.0`","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":33.6,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}