TYPO3 Cross-site Scripting vulnerability in the extension manager and backend forms
Date: 2022-05
Affected: composer/typo3/cms-backend, composer/typo3/cms-backend, composer/typo3/cms-backend
Attack vector: xss
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2010-3659
CWE: CWE-79
CVSS: 5.4 (CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N)

Multiple cross-site scripting (XSS) vulnerabilities in TYPO3 CMS 4.1.x before 4.1.14, 4.2.x before 4.2.13, 4.3.x before 4.3.4, and 4.4.x before 4.4.1 allow remote authenticated backend users to inject arbitrary web script or HTML via unspecified parameters to the extension manager, or unspecified parameters to unknown backend forms.


Mitigations:

Architectural layers (MAESTRO):