CVE-2026-52775
CVE-2026-52775
YesWiki is a wiki system written in PHP. Prior to version 4.6.6, YesWiki through the latest development branch contains a SQL injection vulnerability in ReactionManager::deleteUserReaction() that allows any authenticated user to inject arbitrary SQL via the {idreaction} and {id} URL path parameters. The parameters are concatenated directly into a SQL LIKE clause without escaping or parameterization. This issue has been patched in version 4.6.6.
Vulnerability class: SQL Injection
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-52775?
- CVE-2026-52775 is a high-severity vulnerability, classified under SQL Injection. CVSS score: 8.8/10. Published 2026-09-05.
- How severe is CVE-2026-52775?
- High severity. CVSS v3 base score is 8.8 out of 10.