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TI-2020-16050 Aliases CVE-2020-26229GHSA-q9cp-mc96-m4w2

XML External Entity in Dashboard Widget

Priority LOW 19CWE-611Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
Low · None · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

TYPO3 is an open source PHP based web content management system. In TYPO3 from version 10.4.0, and before version 10.4.10, RSS widgets are susceptible to XML external entity processing. This vulnerability is reasonable, but is theoretical - it was not possible to actually reproduce the vulnerability with current PHP versions of supported and maintained system distributions. At least with libxml2 version 2.9, the processing of XML external entities is disabled per default - and cannot be exploited. Besides that, a valid backend user account is needed. Update to TYPO3 version 10.4.10 to fix the problem described.

Why it matters now

EPSS 0.00644 51st percentileScored 2026-11-07
Fix Fixed TYPO3.CMS (TYPO3): 10.4.10typo3/cms-core (Packagist): 10.4.10+1 more product

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
TYPO3TYPO3.CMS10.0.0 to before 10.4.1010.4.10Patch availableCNA
—typo3/cms-core (Packagist)10.0.0 to before 10.4.1010.4.10Patch availableGHSA-q9cp-mc96-m4w2
—typo3/cms (Packagist)10.0.0 to before 10.4.1010.4.10Patch availableGHSA-q9cp-mc96-m4w2
  • TYPO3.CMS VendorTYPO3 Affected 10.0.0 to before 10.4.10 Fixed in 10.4.10 Patch available CNA
  • typo3/cms-core (Packagist) Vendor— Affected 10.0.0 to before 10.4.10 Fixed in 10.4.10 Patch available GHSA-q9cp-mc96-m4w2
  • typo3/cms (Packagist) Vendor— Affected 10.0.0 to before 10.4.10 Fixed in 10.4.10 Patch available GHSA-q9cp-mc96-m4w2

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*10.0.0 to before 10.4.10VulnerableTYPO3
  • cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:* Versions 10.0.0 to before 10.4.10 Vulnerable ·TYPO3

Remediation

  • Fix · CNA TYPO3.CMS (TYPO3) Fixed in 10.4.10
  • Fix · GHSA-q9cp-mc96-m4w2 typo3/cms-core (Packagist) Fixed in 10.4.10 Advisory →
  • Fix · GHSA-q9cp-mc96-m4w2 typo3/cms (Packagist) Fixed in 10.4.10 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-26229
  2. 2026-10-03 Alias added: GHSA-q9cp-mc96-m4w2
  3. 2026-10-21 EPSS moved to the 50th–90th percentile

References

Advisory 3

Other 2

  • TI-2023-10314 Persisted Cross-Site Scripting in Frontend Rendering in typo3 CVSS 3.1HIGH 8.8
  • TI-2010-03538 The jumpUrl (aka access tracking) implementation in tslib/class.tslib_fe.php in TYPO3… CVSS 2.0HIGH 7.1
  • TI-2009-00775 The jumpUrl mechanism in class.tslib_fe.php in TYPO3 3.3.x through 3.8.x, 4.0 before… CVSS 2.0MEDIUM 5.0
  • TI-2009-00241 The Indexed Search Engine (indexed_search) system extension in TYPO3 4.0.0 through 4.0.9… CVSS 2.0HIGH 10.0
  • TI-2020-08940 Improperly Controlled Modification of Dynamically-Determined Object Attributes in TYPO3 CMS CVSS 3.1CRITICAL 10.0
  • TI-2011-03994 Improper authentication in TYPO3 CVSS 3.1CRITICAL 9.8
See all 217 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences