What is CVE-2026-13354?

CVE-2026-13354 is a high-severity vulnerability in Gabelivan Asset Cleanup: Page Speed Booster, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-09-19.

How severe is CVE-2026-13354?

High severity. CVSS v3 base score is 7.2 out of 10.

XSS in Gabelivan Asset Cleanup: Page Speed Booster

CVE-2026-13354

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.

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

Affected products

Gabelivan Asset Cleanup: Page Speed Booster

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-13354?: CVE-2026-13354 is a high-severity vulnerability in Gabelivan Asset Cleanup: Page Speed Booster, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-09-19.
How severe is CVE-2026-13354?: High severity. CVSS v3 base score is 7.2 out of 10.