CVE-2024-52800

Potential XXE (XML External Entity Injection) vulnerability in veraPDF CLI

Severity Score

2.3

*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

veraPDF is an open source PDF/A validation library. Executing policy checks using custom schematron files via the CLI invokes an XSL transformation that may theoretically lead to a remote code execution (RCE) vulnerability. This doesn't affect the standard validation and policy checks functionality, veraPDF's common use cases. Most veraPDF users don't insert any custom XSLT code into policy profiles, which are based on Schematron syntax rather than direct XSL transforms. For users who do, only load custom policy files from sources you trust. This issue has not yet been patched. Users are advised to be cautious of XSLT code until a patch is available.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Attack Requirements

Present

Privileges Required

None

User Interaction

Passive

System

Vulnerable | Subsequent

Confidentiality

Low

None

Integrity

Low

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-11-15 CVE Reserved
2024-11-29 CVE Published
2024-11-30 EPSS Updated
2024-11-30 First Exploit
2024-12-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-611: Improper Restriction of XML External Entity Reference

CAPEC

References (3)

URL	Tag	Source
https://github.com/veraPDF/veraPDF-library/issues/1488	X_refsource_misc
https://github.com/veraPDF/veraPDF-library/security/advisories/GHSA-4cx5-89vm-833x	X_refsource_confirm

URL	Date	SRC
https://github.com/JAckLosingHeart/GHSA-4cx5-89vm-833x-POC	2024-11-30

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
VeraPDF Search vendor "VeraPDF"		VeraPDF-library Search vendor "VeraPDF" for product "VeraPDF-library"				<= 1.26.1 Search vendor "VeraPDF" for product "VeraPDF-library" and version " <= 1.26.1"		en		Affected