CVE-2026-11982 Stored XSS via missing XSS safety check in Admin2 Pages API partial validation
Attackers can inject malicious scripts via the Admin2 Pages API, leading to stored XSS in Grav CMS.
- 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-2026-11982?
CVE-2026-11982 is a medium-severity cross-site scripting vulnerability in grav-plugin-api, published on 18 Jun 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
Grav 2.0.0-rc.9 with Admin2 2.0.0-rc.14 contains a stored cross-site scripting (XSS) vulnerability in the Admin2 Pages API save flow.
Weakness: CWE-79
Which versions are affected by CVE-2026-11982?
How do I fix CVE-2026-11982?
No fix has been published for CVE-2026-11982 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-2026-11982 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11982 exists.
Sources
Also known as GHSA-5wc5-7v9g-f7v6, GHSA-pfvx-ccc8-f3hr.