CVE-2026-107422 WordPress WP w3all phpBB plugin <= 3.1.0 - Cross Site Scripting (XSS) vulnerability
A stored XSS vulnerability in the WP w3all phpBB WordPress plugin allows attackers to inject malicious scripts, potentially leading to session hijacking or code execution.
- 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-2026-107422?
CVE-2026-107422 is a medium-severity cross-site scripting vulnerability in axew3.com WP w3all phpBB, published on 14 Oct 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 axew3.com WP w3all phpBB wp-w3all-phpbb-integration allows Stored XSS.This issue affects WP w3all phpBB: from n/a through 3.1.0.
Weakness: CWE-79
Which versions are affected by CVE-2026-107422?
How do I fix CVE-2026-107422?
No fix has been published for CVE-2026-107422 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-2026-107422 being exploited?
There is no known exploitation of CVE-2026-107422 in the wild and no public exploit code.
Sources
Also known as GHSA-5r6j-463q-fjwc.