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CVE-2026-76572— pkp pkp-lib XSLTransformer.php _transformPHP xml external entity reference

Quick assessment

Affected
pkp pkp-lib
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 pkp-lib 3.3.0-22 及更早版本、3.4.0-10 及更早版本、以及 3.5.0-4 及更早版本中发现了一个漏洞。受影响的元素是文件 classes/xslt/XSLTransformer.php 中的 _transformPHP 函数。该漏洞可导致 XML 外部实体引用（XXE）问题。攻击者可远程执行该漏洞。将受影响组件升级至版本 3.3.0-23、3.4.0-11 或 3.5.0-5 即可修复此问题。相关补丁标识为 78c699370ea43ae2784e1c4ace7c947d207f2b47

CVSS 4.7 · Medium EPSS 0.34% · P26

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 6

VendorProduct Version RangeStatus
pkp pkp-lib 3.3.0-22 affected
3.4.0-10 affected
3.5.0-4 affected
3.3.0-23 unaffected
3.4.0-11 unaffected
3.5.0-5 unaffected
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I. Basic Information for CVE-2026-76572

Vulnerability Information
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Vulnerability Title
pkp pkp-lib XSLTransformer.php _transformPHP xml external entity reference
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
XML外部实体引用的不恰当限制(XXE)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
pkp pkp-lib 3.3.0-22 cpe:2.3:a:pkp:pkp-lib:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-76572

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III. Intelligence Information for CVE-2026-76572

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Patches & Fixes for CVE-2026-76572 (3)

Vendor Pages for CVE-2026-76572 (1)

IV. Related Vulnerabilities

Same product: pkp-lib
Same vendor: pkp
Same weakness: CWE-611

V. Comments for CVE-2026-76572

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