CVE-2021-21370

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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.4 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
GitHub_MCNA
5.4 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 56%
VendorProductVersion
typo3typo3
7.0.0 ≤
𝑥
< 7.6.51
typo3typo3
8.0.0 ≤
𝑥
< 8.7.40
typo3typo3
9.0.0 ≤
𝑥
< 9.5.25
typo3typo3
10.0.0 ≤
𝑥
< 10.4.14
typo3typo3
11.0.0 ≤
𝑥
< 11.1.1
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-x7hc-x7fm-f7qh
https://packagist.org/packages/typo3/cms-backend
https://typo3.org/security/advisory/typo3-core-sa-2021-008
https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-x7hc-x7fm-f7qh
https://packagist.org/packages/typo3/cms-backend
https://typo3.org/security/advisory/typo3-core-sa-2021-008