What is CVE-2026-76572?

CVE-2026-76572 is a medium-severity vulnerability in Pkp Pkp-Lib, classified under Externally Controlled Reference to a Resource in Another Sphere. CVSS score: 4.7/10. Published 2026-08-19.

How severe is CVE-2026-76572?

Medium severity. CVSS v3 base score is 4.7 out of 10.

XXE in Pkp Pkp-Lib

CVE-2026-76572

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.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.

Affected products

Pkp Pkp-lib — versions 3.3.0-22, 3.4.0-10, 3.5.0-4

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (issue-tracking)
cna@vuldb.com (patch)
cna@vuldb.com (patch)
cna@vuldb.com (product)

Frequently asked questions

What is CVE-2026-76572?: CVE-2026-76572 is a medium-severity vulnerability in Pkp Pkp-Lib, classified under Externally Controlled Reference to a Resource in Another Sphere. CVSS score: 4.7/10. Published 2026-08-19.
How severe is CVE-2026-76572?: Medium severity. CVSS v3 base score is 4.7 out of 10.