CVE-2026-94376 Better Messages <= 3.0.4 - Authenticated (Subscriber+) Stored DOM-Based Cross-Site Scripting via User Display Name
Authenticated subscribers can inject malicious scripts via display names, leading to stored XSS and potential account takeover in the Better Messages WordPress plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-94376?
CVE-2026-94376 is a medium-severity cross-site scripting vulnerability in wordplus Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots, published on 25 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via User Display Name in all versions up to, and including, 3.0.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is exploitable by Subscriber-level users because WordPress core's sanitize_text_field() preserves HTML-entity-encoded payloads (e.g., an iframe srcdoc attribute), allowing the encoded string to be stored as a display name without requiring the unfiltered_html capability, and the plugin subsequently decodes it server-side before rendering.
Weakness: CWE-79
Which versions are affected by CVE-2026-94376?
How do I fix CVE-2026-94376?
No fix has been published for CVE-2026-94376 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-2026-94376 being exploited?
There is no known exploitation of CVE-2026-94376 in the wild and no public exploit code.
Sources
Also known as GHSA-5vv2-wcc7-jmpm.