CVE-2026-13354 Asset CleanUp: Page Speed Booster <= 1.4.0.5 - Unauthenticated Stored Cross-Site Scripting via Comment Content
Unauthenticated attackers can inject arbitrary scripts via comment content in Asset CleanUp plugin when CSS combining is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-13354?
CVE-2026-13354 is a high-severity cross-site scripting vulnerability in gabelivan Asset CleanUp: Page Speed Booster, published on 19 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-13354?
How do I fix CVE-2026-13354?
No fix has been published for CVE-2026-13354 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-13354 being exploited?
There is no known exploitation of CVE-2026-13354 in the wild and no public exploit code.
Sources
Also known as GHSA-7gwr-8m73-rgp7.