CVE-2026-76572: Pkp Pkp-Lib

Medium severity, CVSS 4.7. EPSS: 0.5% chance of exploitation in the next 30 days.

A vulnerability was detected in pkp pkp-lib up to 3.3.0-22/3.4.0-10/3.5.0-4. The affected element is the function _transformPHP of the file classes/xslt/XSLTransformer.php. The manipulation results in xml external entity reference. The attack can be executed remotely. Upgrading to version 3.3.0-23, 3.4.0-11 and 3.5.0-5 is sufficient to fix this issue. The patch is identified as 78c699370ea43ae2784e1c4ace7c947d207f2b47. Upgrading the affected component is advised.

Affected products

• Pkp Pkp-Lib: version 3.3.0-22 only; version 3.4.0-10 only; version 3.5.0-4 only

Published 2026-08-19. Last modified 2026-08-20.