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Advisory record · GHSA-q9cp-mc96-m4w2

XML External Entity in Dashboard Widget

CVSS 3.7 LowEPSS 0.0064 · 51st percentile

Published by the GitHub Advisory Database at 23 Nov 2020, 21:18 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
typo3/cms-corePackagist>=10.0.0, <10.4.1010.4.10
typo3/cmsPackagist>=10.0.0, <10.4.1010.4.10
Identifiers
GHSA-q9cp-mc96-m4w2 · BIT-typo3-2020-26229 · CVE-2020-26229 · PKSA-5b2v-fk9x-ph9d · PKSA-6tyw-2n11-ssbd
Weakness (CWE)
CWE-611
Tags
Published
23 Nov 2020
Updated
8 Jul 2026

Machine-written summary

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

Typo3/cms-core and typo3/cms versions 10.0.0 up to but not including 10.4.10 are affected by an XML external entity issue in the RSS dashboard widget. An attacker needs a valid backend user account, and the source says the issue is theoretical because it could not be reproduced with current PHP and libxml2 defaults, which disable external entity processing. Upgrade to version 10.4.10, which fixes the problem.

Written 3 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
3.7 Low 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:L CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0064, the 51st percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:25 UTC First seen by agentprime
  2. 31 Oct 2026, 14:25 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.