CVE-2021-21358

Medium

Description

TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 10.4.14, 11.1.1 it has been discovered that the Form Designer backend module of the Form Framework is vulnerable to cross-site scripting. A valid backend user account with access to the form module is needed to exploit this vulnerability. This is fixed in versions 10.4.14, 11.1.1.

SeverityMedium
CVSS5.4
Exploit probability—
ProductTypo3
PublishedMar 23, 2021
First seenMar 23, 2021

How to fix

Update
  • typo3 typo310.4.14, 11.1.1 or later
  • typo3/cms-form10.4.14, 11.1.1 or later
  • typo3/cms-core10.4.14, 11.1.1 or later
  • typo3/cms10.4.14, 11.1.1 or later

Affected products

ProductAffected versionsFixed in
typo3 typo310.2.0 ≤ v < 10.4.14, 11.0.0 ≤ v < 11.1.110.4.14, 11.1.1
typo3/cms-formPackagist10.2.0 ≤ v < 10.4.14, 11.0.0 ≤ v < 11.1.110.4.14, 11.1.1
typo3/cms-corePackagist10.0.0 ≤ v < 10.4.14, 11.0.0 ≤ v < 11.1.110.4.14, 11.1.1
typo3/cmsPackagist10.0.0 ≤ v < 10.4.14, 11.0.0 ≤ v < 11.1.110.4.14, 11.1.1

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CVE-2021-21358 · Typo3 · Dark Radar