CVEvulnerability
CVE-2021-21370
5.4 MEDIUM
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- Status
- Modified
- Published
- 2021-03-23
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CVSS 3.1 ([email protected])
- 5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CVSS 2.0 ([email protected])
- 3.5 LOW — AV:N/AC:M/Au:S/C:N/I:P/A:N
- Weaknesses
- CWE-79
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.
Affected configurations
• typo3 typo3 (>= 7.0.0 < 7.6.51)
• typo3 typo3 (>= 8.0.0 < 8.7.40)
• typo3 typo3 (>= 9.0.0 < 9.5.25)
• typo3 typo3 (>= 10.0.0 < 10.4.14)
• typo3 typo3 (>= 11.0.0 < 11.1.1)
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-x7hc-x7fm-f7qh Third Party Advisory
- https://packagist.org/packages/typo3/cms-backend Release Notes, Third Party Advisory
- https://typo3.org/security/advisory/typo3-core-sa-2021-008 Vendor Advisory
- https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-x7hc-x7fm-f7qh Third Party Advisory
- https://packagist.org/packages/typo3/cms-backend Release Notes, Third Party Advisory
- https://typo3.org/security/advisory/typo3-core-sa-2021-008 Vendor Advisory