CVE-2020-26227

6.1 mediumEPSS 0.7%

Medium (6.1) in typo3 typo3. EPSS 0.7% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

6.1 medium

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

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 54% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2020-11-23
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

typo3:typo3

References

https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-vqqx-jw6p-q3rf
https://typo3.org/security/advisory/typo3-core-sa-2020-010
https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-vqqx-jw6p-q3rf
https://typo3.org/security/advisory/typo3-core-sa-2020-010

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