{"id":"CVE-2026-116900","title":"REDAXO before 5.21.4 Stored XSS via Media and Link Input Widgets","summary":"REDAXO before 5.21.4 contains a stored cross-site scripting vulnerability that allows content editors to inject HTML by storing unescaped values rendered by media, medialist, link and linklist widgets. Attackers can submit crafted REX_IN…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","cvssSource":"cna","cwe":["CWE-79"],"vendor":"redaxo","product":"core","affected":["core < 5.21.4"],"published":"2026-10-27","updated":"2026-10-27","sourceUpdated":"2026-10-27T10:59:28.149Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-116900","references":[{"url":"https://github.com/redaxo/core/security/advisories/GHSA-5wmj-5x79-rr87","label":"GitHub Security Advisory (GHSA-5wmj-5x79-rr87)"},{"url":"https://www.vulncheck.com/advisories/redaxo-before-5.21.4-stored-xss-via-media-and-link-input-widgets","label":"VulnCheck Advisory: REDAXO before 5.21.4 Stored XSS via Media and Link Input Widgets"}],"tags":["cve.org"],"ingestedAt":"2026-10-27T16:11:59.296Z","slug":"CVE-2026-116900","body":"## Overview\n\nREDAXO before 5.21.4 contains a stored cross-site scripting vulnerability that allows content editors to inject HTML by storing unescaped values rendered by media, medialist, link and linklist widgets. Attackers can submit crafted REX_INPUT_MEDIA or REX_INPUT_LINK values that break out of the value attribute, executing script in administrators' backend sessions to hijack accounts.\n\n## Affected\n\n- `core < 5.21.4`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}