Vulnerability Description
The Asset CleanUp: Page Speed Booster plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content in all versions up to, and including, 1.4.0.5 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is only exploitable on instances where combine_loaded_css has been enabled.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/wp-asset-clean-up/tags/1.4.0.3/classe
- https://plugins.trac.wordpress.org/browser/wp-asset-clean-up/tags/1.4.0.3/classe
- https://plugins.trac.wordpress.org/browser/wp-asset-clean-up/tags/1.4.0.4/classe
- https://plugins.trac.wordpress.org/browser/wp-asset-clean-up/tags/1.4.0.4/classe
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3699024%40wp-asset-cl
- https://research.cleantalk.org/cve-2026-13354
- https://www.wordfence.com/threat-intel/vulnerabilities/id/4cc8ec2b-f203-4c7c-872
FAQ
What is CVE-2026-13354?
CVE-2026-13354 is a vulnerability with a CVSS score of 7.2 (HIGH). The Asset CleanUp: Page Speed Booster plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content in all versions up to, and including, 1.4.0.5 due to insufficient input sani...
How severe is CVE-2026-13354?
CVE-2026-13354 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-13354?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.