CVE-2026-16260 Post Grid, Slider & Carousel Ultimate < 1.8.1 - Contributor+ Stored XSS via Header Title Field
Contributors can inject JavaScript via header titles, leading to admin session hijacking or code execution when viewed.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-16260?
CVE-2026-16260 is a medium-severity cross-site scripting vulnerability in Unknown Post Grid, Slider & Carousel Ultimate, published on 22 Aug 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
The Post Grid, Slider & Carousel Ultimate WordPress plugin before 1.8.1 does not sanitise and escape one of its custom post type settings before outputting it in an HTML attribute on the admin edit screen, allowing users with the Contributor role and above to inject JavaScript that executes in the session of any administrator who opens the affected item.
Weakness: CWE-79
Which versions are affected by CVE-2026-16260?
How do I fix CVE-2026-16260?
No fix has been published for CVE-2026-16260 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-2026-16260 being exploited?
There is no known exploitation of CVE-2026-16260 in the wild and no public exploit code.
Sources
Also known as GHSA-9jf6-vw36-77hj.