CVE-2021-24983: Asset CleanUp < 1.3.8.5 - Reflected Cross-Site Scripting via AJAX Action

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-02-01 · updated 2026-06-17
Weakness: CWE-79

Description

The Asset CleanUp: Page Speed Booster WordPress plugin before 1.3.8.5 does not sanitise and escape POSted parameters sent to the wpassetcleanup_fetch_active_plugins_icons AJAX action (available to admin users), leading to a Reflected Cross-Site Scripting issue

Affected products

Asset CleanUp: Page Speed Booster: before 1.3.8.5 — fixed in 1.3.8.5

How to fix

Upgrade to a fixed version: Asset CleanUp: Page Speed Booster 1.3.8.5. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/31fdabb0-bc74-4d25-b0cd-c872aae6cb2f
https://wpscan.com/vulnerability/31fdabb0-bc74-4d25-b0cd-c872aae6cb2f

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