CVE-2021-32667

5.4 mediumEPSS 0.6%

Medium (5.4) in typo3 typo3. EPSS 0.6% chance of exploitation in the next 30 days.

TYPO3 is an open source PHP based web content management system. Versions 9.0.0 through 9.5.28, 10.0.0 through 10.4.17, and 11.0.0 through 11.3.0 have a cross-site scripting vulnerability. When _Page TSconfig_ settings are not properly encoded, corresponding page preview module (_Web>View_) is vulnerable to persistent cross-site scripting. A valid backend user account is needed to exploit this vulnerability. TYPO3 versions 9.5.29, 10.4.18, 11.3.1 contain a patch for this issue.

Severity

CVSS 3.1

5.4 medium

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

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2021-07-20
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-8mq9-fqv8-59wf
https://typo3.org/security/advisory/typo3-core-sa-2021-009
https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-8mq9-fqv8-59wf
https://typo3.org/security/advisory/typo3-core-sa-2021-009

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