{"id":"CVE-2026-104449","summary":"YesWiki before 4.6.7 Unauthenticated Page Overwrite via Bazar id_fiche","details":"YesWiki before 4.6.7 contains an access control vulnerability allowing unauthenticated attackers to overwrite any existing wiki page, including pages whose write ACL restricts editing, via the Bazar entry-creation flow. Attackers can submit a crafted entry with an attacker-controlled id_fiche matching an existing page, overwriting its body for mass defacement and content destruction.","aliases":["GHSA-4388-phmh-jrw8"],"modified":"2026-10-04T02:46:36.279421617Z","published":"2026-10-02T11:38:21.736Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104449.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-639"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104449.json"},{"type":"ADVISORY","url":"https://github.com/YesWiki/yeswiki/security/advisories/GHSA-4388-phmh-jrw8"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-104449"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-unauthenticated-page-overwrite-via-bazar-id-fiche"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/yeswiki/yeswiki","events":[{"introduced":"0"},{"fixed":"07120ed8971047f504f7ec78060828f1895f475f"}],"database_specific":{"source":["AFFECTED_FIELD","DESCRIPTION"],"extracted_events":[{"introduced":"0"},{"fixed":"4.6.7"}]}}],"versions":["v4.6.6","v4.6.5","v4.6.4","v4.6.3","v4.6.2","v4.6.0","v4.5.5","v4.5.4","v4.5.3","v4.5.2","v4.5.1","v4.4.3","v4.4.2","v4.4.1","v4.4.0","v4.3.1","v4.3.0","v4.2.2","v4.2.1","v4.2.0","v4.1.5","v4.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-104449.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N"}]}