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Servers and applications

CVE-2021-32667

Cross-Site Scripting in Page Preview

Severity
Medium 5.4
Published
20 Jul 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
11.3.1
Also known as
GHSA-8mq9-fqv8-59wf
Sources
NVD, Project advisories (GitHub)

Description

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…

Affected software

SoftwareAffected versions
TYPO3Servers and applications · cpe:a:typo3:typo3
  • From 9.0.0 up to 9.5.287
  • From 10.0.0 up to 10.4.17
  • From 11.0.0 up to 11.3.0
TYPO3Servers and applications · github:typo3/typo3
  • From 11.0.0 before 11.3.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-32667
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-32667
  • GitHub Advisory Database https://github.com/advisories/GHSA-8mq9-fqv8-59wf
  • github.com https://github.com/TYPO3/typo3/security/advisories/GHSA-8mq9-fqv8-59wf