CVE-2026-25331 WordPress WP Activity Log plugin <= 5.5.4 - Cross Site Scripting (XSS) vulnerability

Medium 6.5 Published Updated

An attacker can execute arbitrary scripts in the context of other users via DOM-based XSS in the WP Activity Log plugin.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-25331?

CVE-2026-25331 is a medium-severity cross-site scripting vulnerability in Melapress WP Activity Log, published on 19 Feb 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Melapress WP Activity Log wp-security-audit-log allows DOM-Based XSS.This issue affects WP Activity Log: from n/a through <= 5.5.4.

Weakness: CWE-79

Which versions are affected by CVE-2026-25331?

How do I fix CVE-2026-25331?

No fix has been published for CVE-2026-25331 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-2026-25331 being exploited?

There is no known exploitation of CVE-2026-25331 in the wild and no public exploit code.

Sources

Also known as GHSA-wpg4-2qjv-77p8.

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