CVE-2021-32668

low-risk

Published 2021-07-20

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 error messages are not properly encoded, the components _QueryGenerator_ and _QueryView_ are vulnerable to both reflected and persistent cross-site scripting. A valid backend user account having administrator privileges is needed to exploit this vulnerability. TYPO3 versions 9.5.29, 10.4.18, 11.3.1 contain a patch for this issue.

Do I need to act?

0.36% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 6.4/10 Medium

NETWORK / HIGH complexity

Affected Products (1)

Typo3

Affected Vendors

Typo3

References (4)

Third Party Advisory https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-6mh3-j5r5-2379

Vendor Advisory https://typo3.org/security/advisory/typo3-core-sa-2021-010

Third Party Advisory https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-6mh3-j5r5-2379

Vendor Advisory https://typo3.org/security/advisory/typo3-core-sa-2021-010

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low-risk

Severity 20/34 · Moderate

Exploitability 1/34 · Minimal

Exposure 5/34 · Minimal