brotkrueml/schema fails to properly encode user input for output in HTML context, leading to XSS
Date: 2022-06
Affected: composer/brotkrueml/schema, composer/brotkrueml/schema
Attack vector: xss
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2022-33154
CWE: CWE-79
CVSS: 5.4 (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N)

The extension fails to properly encode user input for output in HTML context. A TYPO3 backend user account is required to exploit the vulnerability.


Mitigations:

Architectural layers (MAESTRO):