{"id":"CVE-2026-116900","state":"PUBLISHED","title":"REDAXO before 5.21.4 Stored XSS via Media and Link Input Widgets","description":"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_INPUT_MEDIA or REX_INPUT_LINK values that break out of the value attribute, executing script in administrators' backend sessions to hijack accounts.","publishedAt":"2026-10-27T10:59:28.149Z","updatedAt":"2026-10-27T10:59:28.149Z","severity":{"score":5.1,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["redaxo core"],"affected":[{"vendor":"redaxo","product":"core","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"5.21.4","versionType":"semver"},{"version":"5.21.4","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/redaxo/core/security/advisories/GHSA-5wmj-5x79-rr87","https://www.vulncheck.com/advisories/redaxo-before-5.21.4-stored-xss-via-media-and-link-input-widgets"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:10:43.281Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/116xxx/CVE-2026-116900.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-116900","state":"PUBLISHED","datePublished":"2026-10-27T10:59:28.149Z","dateUpdated":"2026-10-27T10:59:28.149Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-10-27T01:02:44.942Z"},"containers":{"cna":{"title":"REDAXO before 5.21.4 Stored XSS via Media and Link Input Widgets","descriptions":[{"lang":"en","value":"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_INPUT_MEDIA or REX_INPUT_LINK values that break out of the value attribute, executing script in administrators' backend sessions to hijack accounts."}],"affected":[{"vendor":"redaxo","product":"core","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"5.21.4","versionType":"semver"},{"version":"5.21.4","status":"unaffected","versionType":"semver"}]}],"references":[{"url":"https://github.com/redaxo/core/security/advisories/GHSA-5wmj-5x79-rr87","tags":["vendor-advisory"],"name":"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","name":"VulnCheck Advisory: REDAXO before 5.21.4 Stored XSS via Media and Link Input Widgets","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","subAvailabilityImpact":"NONE","baseScore":5.1,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-10-27T10:59:28.149Z"},"datePublic":"2026-08-03T00:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:redaxo:redaxo:*:*:*:*:*:*:*:*","versionEndExcluding":"5.21.4"}]}]}],"credits":[{"lang":"en","value":"V-C-Williams","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}}}}}