CVE-2021-21370
Medium
Description
TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1 it has been discovered that content elements of type _menu_ are vulnerable to cross-site scripting when their referenced items get previewed in the page module. A valid backend user account is needed to exploit this vulnerability. This is fixed in versions 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1.
SeverityMedium
CVSS5.4
Exploit probability—
Product
Typo3
PublishedMar 23, 2021
First seenMar 23, 2021
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- typo3 typo37.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1 or later
- typo3/cms-backend7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1 or later
- typo3/cms-core10.4.14, 11.1.1, 9.5.25 or later
- typo3/cms10.4.14, 11.1.1, 9.5.25 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| typo3 typo3 | 7.0.0 ≤ v < 7.6.51, 8.0.0 ≤ v < 8.7.40, 9.0.0 ≤ v < 9.5.25, 10.0.0 ≤ v < 10.4.14, 11.0.0 ≤ v < 11.1.1 | 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1 |
| typo3/cms-backendPackagist | 7.0.0 ≤ v < 7.6.51, 8.0.0 ≤ v < 8.7.40, 9.0.0 ≤ v < 9.5.25, 10.0.0 ≤ v < 10.4.14, 11.0.0 ≤ v < 11.1.1 | 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1 |
| typo3/cms-corePackagist | 10.0.0 ≤ v < 10.4.14, 11.0.0 ≤ v < 11.1.1, 9.0.0 ≤ v < 9.5.25 | 10.4.14, 11.1.1, 9.5.25 |
| typo3/cmsPackagist | 10.0.0 ≤ v < 10.4.14, 11.0.0 ≤ v < 11.1.1, 9.0.0 ≤ v < 9.5.25 | 10.4.14, 11.1.1, 9.5.25 |
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