CVE-2026-108168 WordPress Custom Query Blocks plugin <= 5.6.0 - Cross Site Scripting (XSS) vulnerability
A stored XSS vulnerability in the Custom Query Blocks plugin allows attackers to inject malicious scripts into web pages viewed by other users.
- 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-2026-108168?
CVE-2026-108168 is a medium-severity cross-site scripting vulnerability in DLX Plugins Custom Query Blocks, published on 12 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 DLX Plugins Custom Query Blocks post-type-archive-mapping allows Stored XSS.This issue affects Custom Query Blocks: from n/a through 5.6.0.
Weakness: CWE-79
Which versions are affected by CVE-2026-108168?
How do I fix CVE-2026-108168?
No fix has been published for CVE-2026-108168 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-2026-108168 being exploited?
There is no known exploitation of CVE-2026-108168 in the wild and no public exploit code.
Sources
Also known as GHSA-jwx6-p4f3-f6xg.