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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-76572
StatePUBLISHED
AssignerVulDB
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-19 20:17:23 UTC
Updated2026-08-20 13:19:05 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v4.0 5.1 MEDIUM from [email protected]

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.003350000 probability, percentile 0.266010000 (date 2026-08-21)

Problem Types: CWE-610 | CWE-611 | CWE-611 XML External Entity Reference | CWE-610 Externally Controlled Reference

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary5.1MEDIUMCVSS: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/C...
4.0CNADECLARED5.1MEDIUMCVSS: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
3.1[email protected]Secondary4.7MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
3.1CNADECLARED4.7MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
3.0CNADECLARED4.7MEDIUMCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
2.0[email protected]Secondary5.8AV:N/AC:L/Au:M/C:P/I:P/A:P
2.0CNADECLARED5.8AV:N/AC:L/Au:M/C:P/I:P/A:P/E:ND/RL:OF/RC:C

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
High
User Interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Pkp Pkp-lib affected 3.3.0-22 Not specified
CNA Pkp Pkp-lib affected 3.4.0-10 Not specified
CNA Pkp Pkp-lib affected 3.5.0-4 Not specified
CNA Pkp Pkp-lib unaffected 3.3.0-23 Not specified
CNA Pkp Pkp-lib unaffected 3.4.0-11 Not specified
CNA Pkp Pkp-lib unaffected 3.5.0-5 Not specified

References

ReferenceSourceLinkTags
vuldb.com/submit/878359 [email protected] vuldb.com
github.com/pkp/pkp-lib/issues/12977 [email protected] github.com
github.com/pkp/pkp-lib/releases/tag/3_5_0-5 [email protected] github.com
vuldb.com/cve/CVE-2026-76572 [email protected] vuldb.com
github.com/pkp/pkp-lib [email protected] github.com
vuldb.com/vuln/393037/cti [email protected] vuldb.com
github.com/pkp/pkp-lib/commit/78c699370ea43ae2784e1c4ace7c947d207f2b47 [email protected] github.com
vuldb.com/vuln/393037 [email protected] vuldb.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Razielx64 (VulDB User) (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-08-19T00:00:00.000ZAdvisory disclosed
CNA2026-08-19T02:00:00.000ZVulDB entry created
CNA2026-08-19T15:51:10.000ZVulDB entry last update

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