CVE-2024-52800Public exploitNetwork attack vector

Data disclosure via unrestricted policy-file external entities

Published Nov 29, 2024 · Updated Dec 2, 2024

XXE in veraPDF Validation Library 1.26.1 and earlier allows context-dependent attackers to disclose data via crafted policy files. ApplicationUtils.mergeEnabledFeaturesFromPolicy creates an XML parser without secure-processing features or external-entity restrictions. Exploitation requires the CLI to process a crafted custom policy file; standard validation is unaffected, and the demonstrated result is an outbound request enabling SSRF or data disclosure.

CVSS severity2.3
Low
EPSS probability1.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XXE in veraPDF Validation Library 1.26.1 and earlier allows context-dependent attackers to disclose data via crafted policy files. ApplicationUtils.mergeEnabledFeaturesFromPolicy creates an XML parser without secure-processing features or external-entity restrictions. Exploitation requires the CLI to process a crafted custom policy file; standard validation is unaffected, and the demonstrated result is an outbound request enabling SSRF or data disclosure.

The record

CVE
CVE-2024-52800
Published
Nov 29, 2024
Updated
Dec 2, 2024
Vendor
veraPDF
Product
veraPDF Validation Library
Classifications
CWE-611, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=<= 1.26.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

veraPDF · veraPDF Validation Libraryversion=<= 1.26.1

Published CVSS scores

2.3GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-611Improper Restriction of XML External Entity Reference
T1204.002Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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