{"affected":[{"defaultStatus":"unaffected","product":"core","source":"CNA: VulnCheck","vendor":"redaxo","versions":[{"lessThan":"5.21.0","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"5.21.0","versionType":"semver"}]},{"defaultStatus":"unaffected","ecosystem":"Packagist","packageName":"redaxo/source","product":"redaxo/source","source":"OSV GHSA-xq4j-g85q-wf97","vendor":"","versions":[{"status":"affected","version":"5.10.0","versionType":"Packagist"},{"status":"affected","version":"5.10.0-beta1","versionType":"Packagist"},{"status":"affected","version":"5.10.0-beta2","versionType":"Packagist"},{"status":"affected","version":"5.10.1","versionType":"Packagist"},{"status":"affected","version":"5.11.0","versionType":"Packagist"},{"status":"affected","version":"5.11.0-beta1","versionType":"Packagist"},{"status":"affected","version":"5.11.1","versionType":"Packagist"},{"status":"affected","version":"5.11.2","versionType":"Packagist"},{"status":"affected","version":"5.12.0","versionType":"Packagist"},{"status":"affected","version":"5.12.0-beta1","versionType":"Packagist"},{"status":"affected","version":"5.12.0-beta2","versionType":"Packagist"},{"status":"affected","version":"5.12.0-beta3","versionType":"Packagist"},{"status":"affected","version":"5.12.1","versionType":"Packagist"},{"status":"affected","version":"5.13.0","versionType":"Packagist"},{"status":"affected","version":"5.13.0-beta1","versionType":"Packagist"},{"status":"affected","version":"5.13.0-beta2","versionType":"Packagist"},{"status":"affected","version":"5.13.1","versionType":"Packagist"},{"status":"affected","version":"5.13.2","versionType":"Packagist"},{"status":"affected","version":"5.13.3","versionType":"Packagist"},{"status":"affected","version":"5.14.0","versionType":"Packagist"},{"status":"affected","version":"5.14.0-beta1","versionType":"Packagist"},{"status":"affected","version":"5.14.0-beta2","versionType":"Packagist"},{"status":"affected","version":"5.14.1","versionType":"Packagist"},{"status":"affected","version":"5.14.2","versionType":"Packagist"},{"status":"affected","version":"5.14.3","versionType":"Packagist"},{"status":"affected","version":"5.15.0","versionType":"Packagist"},{"status":"affected","version":"5.15.0-beta1","versionType":"Packagist"},{"status":"affected","version":"5.15.1","versionType":"Packagist"},{"status":"affected","version":"5.16.0","versionType":"Packagist"},{"status":"affected","version":"5.16.0-beta1","versionType":"Packagist"},{"status":"affected","version":"5.16.1","versionType":"Packagist"},{"status":"affected","version":"5.17.0","versionType":"Packagist"},{"status":"affected","version":"5.17.1","versionType":"Packagist"},{"status":"affected","version":"5.18.0","versionType":"Packagist"},{"status":"affected","version":"5.18.1","versionType":"Packagist"},{"status":"affected","version":"5.18.2","versionType":"Packagist"},{"status":"affected","version":"5.18.3","versionType":"Packagist"},{"status":"affected","version":"5.19.0","versionType":"Packagist"},{"status":"affected","version":"5.20.0","versionType":"Packagist"},{"status":"affected","version":"5.20.1","versionType":"Packagist"},{"status":"affected","version":"5.20.2","versionType":"Packagist"},{"status":"affected","version":"5.21.0-beta1","versionType":"Packagist"},{"events":[{"introduced":"0"},{"fixed":"5.21.0"}],"status":"unknown","version":"0","versionType":"ECOSYSTEM"}]}],"cveId":"CVE-2026-117538","cwes":["CWE-79"],"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.","epss":{"date":"2026-11-04","percentile":0.07514,"score":0.00179},"exploits":[{"kind":"exploit","source":"ADP: CISA-ADP","url":"https://github.com/redaxo/core/security/advisories/GHSA-xq4j-g85q-wf97"}],"kev":null,"metrics":[{"score":2.1,"severity":"low","source":"CNA: VulnCheck","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","version":"4.0"},{"score":4.1,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},{"score":2.1,"severity":"low","source":"NVD: disclosure@vulncheck.com","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","version":"4.0"},{"score":4.1,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L","version":"3.1"}],"modifiedAt":1793812651390,"publishedAt":1793098772772,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/redaxo/core/security/advisories/GHSA-xq4j-g85q-wf97"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/redaxo-before-5.21.0-reflected-xss-via-packages-api-function-parameter"},{"source":"ADP: CISA-ADP","tags":["exploit"],"url":"https://github.com/redaxo/core/security/advisories/GHSA-xq4j-g85q-wf97"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/redaxo/core/security/advisories/GHSA-xq4j-g85q-wf97"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/redaxo-before-5.21.0-reflected-xss-via-packages-api-function-parameter"},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":[],"url":"https://github.com/redaxo/core/security/advisories/GHSA-xq4j-g85q-wf97"},{"source":"OSV / GitHub Security Advisories","tags":["advisory"],"url":"https://github.com/advisories/GHSA-xq4j-g85q-wf97"},{"source":"OSV / GitHub Security Advisories","tags":["osv"],"url":"https://osv.dev/vulnerability/GHSA-xq4j-g85q-wf97"}],"remediation":[{"kind":"fix","source":"OSV GHSA-xq4j-g85q-wf97","text":"redaxo/source (Packagist): OSV reports a fixed version 5.21.0. Check the advisory for supported release branches.","url":"https://github.com/advisories/GHSA-xq4j-g85q-wf97"}],"revision":"68d4510aafba14f69f9f29eabaccfc078e1258cbc81920bd21d2a0c57a84de1f","sources":[{"modifiedAt":1793811540681,"name":"CNA: VulnCheck","retrievedAt":1793812165848,"url":"https://www.cve.org/CVERecord?id=CVE-2026-117538"},{"modifiedAt":1793812651390,"name":"NVD","retrievedAt":1793816530858,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-117538"},{"modifiedAt":1793156167570,"name":"OSV / GitHub Security Advisories","retrievedAt":1793812166390,"url":"https://osv.dev/vulnerability/GHSA-xq4j-g85q-wf97"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793812192626,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-117538"}],"ssvc":{"assessedAt":1793811533507,"automatable":"no","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"REDAXO before 5.21.0 Reflected XSS via Packages API function Parameter","updatedAt":1793816530858}