CVE-2026-52775

HIGH CVSS 3.1: 8.8 EPSS 0.29%
Updated Sep 05, 2026
PHP
Parameter Value
CVSS 8.8 (HIGH)
Fixed In 4.6.6
Type CWE-89 (SQL Injection)
Vendor PHP
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products

yeswiki:yeswiki