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OpenAdvisories
High · 7.6 CVE-2026-104456 EUVD-2026-91467GHSA-m352-5gh7-99x6

YesWiki before 4.6.7 Second-Order SQL Injection via ACL Username

Published Oct 2, 2026 · Updated Oct 2, 2026 · Assigned by VulnCheck

Description

YesWiki before 4.6.7 contains a second-order SQL injection vulnerability in AclService::updateRequestWithACL, where a stored username is concatenated unescaped into a read-ACL LIKE clause. Attackers can self-register an account name containing a double-quote payload, then load non-admin ACL-filtered listings to read database contents and bypass read ACLs.

Affected products

VendorProductAffectedFixed
YesWiki yeswiki < 4.6.7 4.6.7

References