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CVE-2026-13354NVD
Vulnerability Summary
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 v3.1 Base Metrics
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone
External References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/4cc8ec2b-f203-4c7c-8720-043f8634a447?source=cve
- https://plugins.trac.wordpress.org/browser/wp-asset-clean-up/tags/1.4.0.4/classes/OptimiseAssets/OptimizeCss.php#L579
- https://plugins.trac.wordpress.org/browser/wp-asset-clean-up/tags/1.4.0.4/classes/OptimiseAssets/OptimizeJs.php#L824
- https://plugins.trac.wordpress.org/browser/wp-asset-clean-up/tags/1.4.0.3/classes/OptimiseAssets/OptimizeCss.php#L579
- https://plugins.trac.wordpress.org/browser/wp-asset-clean-up/tags/1.4.0.3/classes/OptimiseAssets/OptimizeJs.php#L824
- https://research.cleantalk.org/cve-2026-13354
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3699024%40wp-asset-clean-up&new=3699024%40wp-asset-clean-up