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CVE-2026-76572

pkp pkp-lib XSLTransformer.php _transformPHP xml external entity reference

MEDIUM
4.7
CVSS Score
Published: August 19, 2026 at 07:30 PM UTC
Updated: August 20, 2026 at 01:19 PM UTC
1 product affected across 1 vendorPkp Web Application Library

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Severity
MEDIUM4.7
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Pkp Web Application Library· Pkp
60%
3.3.0-223.4.0-103.5.0-4
Vendor states this is fixed in 3.3.0-23 (unaffected)
Vendor states this is fixed in 3.4.0-11 (unaffected)
Vendor states this is fixed in 3.5.0-5 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (8)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/393037
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/393037/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-76572
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/878359
Issue Tracking
Source: cverecord
https://github.com/pkp/pkp-lib/issues/12977
Patch
Source: cverecord
https://github.com/pkp/pkp-lib/commit/78c699370ea43ae2784e1c4ace7c947d207f2b47
Patch
Source: cverecord
https://github.com/pkp/pkp-lib/releases/tag/3_5_0-5
Product
Source: cverecord
https://github.com/pkp/pkp-lib/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.7MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-611CWE-610

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