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Vulnerability record · CVE-2026-52775 · published 5 September 2026

CVE-2026-52775: SQL injection vulnerability

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.

8.8 CVSS 3.1 High EPSS 0.48% · top 60.8% CWE-89 · SQL injection Deferred
8.8CVSS 3.1 base score
0.48%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
8 Sep 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

LinkTags
https://github.com/YesWiki/yeswiki/commit/90ca54fb518e1c43a1ead6e4f5bf9f0389789841
https://github.com/YesWiki/yeswiki/releases/tag/v4.6.6
https://github.com/YesWiki/yeswiki/security/advisories/GHSA-4pf7-cc4r-g63h
https://github.com/YesWiki/yeswiki/security/advisories/GHSA-4pf7-cc4r-g63h

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Source: NIST National Vulnerability Database (record CVE-2026-52775), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.