{"id":"CVE-2026-117538","state":"PUBLISHED","title":"REDAXO before 5.21.0 Reflected XSS via Packages API function Parameter","description":"REDAXO before 5.21.0 contains a reflected cross-site scripting vulnerability in the backend packages API, where the function parameter is concatenated into an error message rendered without HTML escaping. Attackers can lure an authenticated backend user to a crafted link containing a valid CSRF token, executing JavaScript that performs same-origin actions or reads DOM data.","publishedAt":"2026-10-27T10:59:32.772Z","updatedAt":"2026-10-27T10:59:32.772Z","severity":{"score":2.1,"label":"Low","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["redaxo core"],"affected":[{"vendor":"redaxo","product":"core","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"5.21.0","versionType":"semver"},{"version":"5.21.0","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/redaxo/core/security/advisories/GHSA-xq4j-g85q-wf97","https://www.vulncheck.com/advisories/redaxo-before-5.21.0-reflected-xss-via-packages-api-function-parameter"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:10:52.580Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/117xxx/CVE-2026-117538.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-117538","state":"PUBLISHED","datePublished":"2026-10-27T10:59:32.772Z","dateUpdated":"2026-10-27T10:59:32.772Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-10-27T10:33:39.045Z"},"containers":{"cna":{"title":"REDAXO before 5.21.0 Reflected XSS via Packages API function Parameter","descriptions":[{"lang":"en","value":"REDAXO before 5.21.0 contains a reflected cross-site scripting vulnerability in the backend packages API, where the function parameter is concatenated into an error message rendered without HTML escaping. Attackers can lure an authenticated backend user to a crafted link containing a valid CSRF token, executing JavaScript that performs same-origin actions or reads DOM data."}],"affected":[{"vendor":"redaxo","product":"core","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"5.21.0","versionType":"semver"},{"version":"5.21.0","status":"unaffected","versionType":"semver"}]}],"references":[{"url":"https://github.com/redaxo/core/security/advisories/GHSA-xq4j-g85q-wf97","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-xq4j-g85q-wf97)"},{"url":"https://www.vulncheck.com/advisories/redaxo-before-5.21.0-reflected-xss-via-packages-api-function-parameter","name":"VulnCheck Advisory: REDAXO before 5.21.0 Reflected XSS via Packages API function Parameter","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"HIGH","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":2.1,"baseSeverity":"LOW"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"LOW","baseScore":4.1,"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":"2026-10-27T10:59:32.772Z"},"datePublic":"2026-04-09T00:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:redaxo:redaxo:*:*:*:*:*:*:*:*","versionEndExcluding":"5.21.0"}]}]}],"credits":[{"lang":"en","value":"NumberOreo1","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}}}}}