{"id":"CVE-2026-116821","published":"2026-10-27T00:17:16.867","lastModified":"2026-10-27T00:17:17.110","description":"YesWiki before 4.7.0 contains a read-ACL bypass in AclService::updateRequestWithACL, which interpolates usernames into SQL LIKE patterns without escaping the _ and % wildcards. Self-registered attackers can use usernames such as ___ or %%% that over-match ACL tokens, reading pages and Bazar entries restricted to other users or groups via the public Bazar listing API.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","cwes":["CWE-89"],"vendors":[],"products":[],"references":[{"url":"https://github.com/YesWiki/yeswiki/commit/f3b0dd093a7ace47dc29a515faeb02635baceae2","tags":[]},{"url":"https://github.com/YesWiki/yeswiki/security/advisories/GHSA-q5j6-79p7-mp94","tags":[]},{"url":"https://www.vulncheck.com/advisories/yeswiki-before-4.7.0-read-acl-bypass-via-sql-like-wildcards-in-usernames","tags":[]}],"exploitRefs":[{"url":"https://github.com/YesWiki/yeswiki/commit/f3b0dd093a7ace47dc29a515faeb02635baceae2","tags":[]},{"url":"https://github.com/YesWiki/yeswiki/security/advisories/GHSA-q5j6-79p7-mp94","tags":[]}],"hasPoc":true,"ai":null}