CVE-2020-26227

MediumCVSS 6.1/10Last modified Jun 17, 2026

Description

TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 9.5.23 and 10.4.10 the system extension Fluid (typo3/cms-fluid) of the TYPO3 core is vulnerable to cross-site scripting passing user-controlled data as argument to Fluid view helpers. Update to TYPO3 versions 9.5.23 or 10.4.10 that fix the problem described.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

Vendor	Product	Versions
TYPO3	TYPO3.CMS	>= 9.0.0, < 9.5.23; >= 10.0.0, < 10.4.10

References

https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-vqqx-jw6p-q3rfExploit, Third Party Advisory
https://typo3.org/security/advisory/typo3-core-sa-2020-010Exploit, Vendor Advisory
https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-vqqx-jw6p-q3rfExploit, Third Party Advisory
https://typo3.org/security/advisory/typo3-core-sa-2020-010Exploit, Vendor Advisory

Timeline

Published: Nov 23, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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