{"id":"CVE-2026-104449","published":"2026-10-02T12:17:16.320","lastModified":"2026-10-06T17:17:12.630","description":"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.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L","cwes":["CWE-639"],"vendors":[],"products":[],"references":[{"url":"https://github.com/YesWiki/yeswiki/security/advisories/GHSA-4388-phmh-jrw8","tags":[]},{"url":"https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-unauthenticated-page-overwrite-via-bazar-id-fiche","tags":[]},{"url":"https://github.com/YesWiki/yeswiki/security/advisories/GHSA-4388-phmh-jrw8","tags":[]}],"exploitRefs":[{"url":"https://github.com/YesWiki/yeswiki/security/advisories/GHSA-4388-phmh-jrw8","tags":[]},{"url":"https://github.com/YesWiki/yeswiki/security/advisories/GHSA-4388-phmh-jrw8","tags":[]}],"hasPoc":true,"ai":null}