# CVE-2026-76572

## Summary

- **CVE ID:** CVE-2026-76572
- **Severity:** MEDIUM
- **CVSS Score:** 5.8 (CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X)
- **CWE:** CWE-611, CWE-610
- **Published:** Aug 19, 2026
- **Last Modified:** Aug 20, 2026

## 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 Products

- pkp — pkp-lib (3.3.0-22)
- pkp — pkp-lib (3.4.0-10)
- pkp — pkp-lib (3.5.0-4)
- pkp — pkp-lib (3.3.0-23)
- pkp — pkp-lib (3.4.0-11)
- pkp — pkp-lib (3.5.0-5)

## References

- [CNA](https://vuldb.com/vuln/393037)
- [CNA](https://vuldb.com/vuln/393037/cti)
- [CNA](https://vuldb.com/cve/CVE-2026-76572)
- [CNA](https://vuldb.com/submit/878359)
- [CNA](https://github.com/pkp/pkp-lib/issues/12977)
- [CNA](https://github.com/pkp/pkp-lib/commit/78c699370ea43ae2784e1c4ace7c947d207f2b47)
- [CNA](https://github.com/pkp/pkp-lib/releases/tag/3_5_0-5)
- [CNA](https://github.com/pkp/pkp-lib/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.34%
- **EPSS Percentile:** 26.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._