WordPress · Asset Cleanup: Page Speed Booster · CVE-2021-36899
**Name of the Vulnerable Software and Affected Versions**
Asset CleanUp: Page Speed Booster plugin versions <= 1.3.8.4
**Description**
The issue is related to an Authenticated Reflected Cross-Site Scripting (XSS) vulnerability. This type of vulnerability allows an attacker to inject malicious scripts into a website, potentially leading to unauthorized actions. The vulnerability requires authentication with admin or higher privileges, indicating it needs access to sensitive areas of the website.
**Recommendations**
For Asset CleanUp: Page Speed Booster plugin versions <= 1.3.8.4, update to a version higher than 1.3.8.4 to resolve the issue.