Clickstorm SEO Allows Cross-Site Scripting (XSS)
Date: 2025-03
Affected: composer/clickstorm/cs-seo, composer/clickstorm/cs-seo, composer/clickstorm/cs-seo
Attack vector: xss
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2025-30081
CWE: CWE-79
CVSS: 5.9 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:F/RL:O/RC:C)

A cross-site scripting (XSS) vulnerability has been discovered in the Clickstorm SEO extension. This vulnerabily is exploitable by a logged in backend user utilizing the TYPO3 backend user interface. This user can create output in the HTML context by exploiting improperly encoded user input. Updates 6.7.0, 7.4.0, 8.3.0 and 9.2.0 are available for download.


Mitigations:

Architectural layers (MAESTRO):