PT-2026-57035 · Packagist · Yeswiki/Yeswiki

Published

2026-07-09

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Updated

2026-07-09

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CVE-2026-52775

CVSS v3.1

8.8

High

VectorAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

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 is a sibling of CVE-2026-46670 (unauthenticated SQLi in FormManager::create()). Both share the same root cause — raw string concatenation into SQL queries — but exist in different components.

Root Cause

includes/controllers/ApiController.php line 726:
php
/**
 * @Route("/api/reactions/{idreaction}/{id}/{page}/{username}", methods={"DELETE"}, options={"acl":{"+"}})
 */
ACL "+" = any authenticated user. Parameters flow into ReactionManager::deleteUserReaction()TripleStore::delete() with raw string concatenation into SQL LIKE clause (line 356).
The if branch (lines 340-354) properly uses $this->dbService->escape(). The else branch does not — the developer applied escaping to one code path but not the other.

PoC

DELETE /wiki/?api/reactions/x%27%20OR%201=1%20OR%20value%20LIKE%20%27/test/SomePage/attacker
Host: localhost:8085
Cookie: <session cookie>
Time-based blind variant via {id} parameter for data exfiltration.

Impact

Full database read/write. Any self-registered user can extract yeswiki users password hashes and emails.

Suggested Fix

Apply $this->dbService->escape() to all parameters in the else branch, matching the if branch pattern. Also audit all TripleStore::delete() callers that pass $extraSQL.

Credits

Kai Aizen / SnailSploit

Fix

SQL injection

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Weakness Enumeration

Related Identifiers

CVE-2026-52775
GHSA-4PF7-CC4R-G63H

Affected Products

Yeswiki/Yeswiki