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Advisory record · GHSA-77jg-cpw9-73vg

Apache Cocoon Improper Restriction of XML External Entity Reference vulnerability

CVSS 9.8 CriticalCriticalEPSS 0.013 · 70th percentile

Critical, because:

  • CVSS score 9.8: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 30 Nov 2023, 12:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.apache.cocoon:cocoonMaven>=2.2.0, <2.3.02.3.0
Identifiers
GHSA-77jg-cpw9-73vg · CVE-2023-49733
Weakness (CWE)
CWE-611
Tags
Published
30 Nov 2023
Updated
13 Feb 2025

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Apache Cocoon versions 2.2.0 before 2.3.0 are vulnerable to XML External Entity (XXE) injection. The source gives few details about the attack conditions or the impact. Users should upgrade to Cocoon 2.3.0, which fixes the issue.

Written 7 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.8 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS 0.013, the 70th percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:11 UTC First seen by agentprime
  2. 31 Oct 2026, 15:11 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.