{"id":"CVE-2026-77608","aliases":["GHSA-59xw-qv23-j3rc"],"url":"https://o3.security/vulnerability/CVE-2026-77608","summary":"Semantic MediaWiki has reflected XSS in `Special:SearchByProperty` (`property` and `value` parameters)","details":"#### Failure mode\n\nThe `value` parameter was reflected back into rendered output and error messaging paths without enough output-context encoding.\n\n#### Remediation\n\n- The form value is escaped before it is placed back into the input field.\n- Derived error messages are also escaped before being rendered into HTML.\n\n#### Maintenance note\n\nDo not treat error text as trusted just because it originated from validation. Validation output can still be attacker-influenced.","published":"2026-09-18T16:43:43.868Z","modified":"2026-10-28T02:31:14.084953411Z","cvss":{"score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Packagist","name":"mediawiki/semantic-media-wiki","fixedVersion":"7.2.0"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/releases/tag/7.2.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77608.json"},{"type":"ADVISORY","url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-59xw-qv23-j3rc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77608"},{"type":"PACKAGE","url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:31:14.084953411Z"}}