CVE-2026-100672 grav-plugin-comments before 1.2.11 Unauthenticated Information Disclosure
Unauthenticated attackers can access recent comment data including emails and file paths via an unprotected admin handler in the Grav Comments plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-100672?
CVE-2026-100672 is a high-severity missing authorization vulnerability in getgrav grav-plugin-comments, published on 26 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Comments plugin (getgrav/grav-plugin-comments) for Grav CMS through version 1.2.10 registers an admin handler that returns comment data as JSON without any authentication check. The handler branches on isAdmin(), which only indicates that the admin service is registered on the current route rather than that the visitor is authenticated, and it echoes the JSON and calls exit() during the plugins stage, before the classic Admin plugin would render its login screen. On a site using the classic Admin plugin with Comments enabled (the default), an unauthenticated remote attacker can request /admin/comments/page:<n> (e.g. page:0.001) and retrieve every comment from the last 7 days, including each commenter's email address and the absolute server filesystem path of the data file. Sites running the Grav 2.0 Admin Next stack (admin2 + api) are not affected via this path. The issue is fixed in 1.2.11, which requires an authenticated user with admin.comments or admin.super and removes the absolute filePath from the response.
Weakness: CWE-306
Which versions are affected by CVE-2026-100672?
How do I fix CVE-2026-100672?
No fix has been published for CVE-2026-100672 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-100672 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100672 exists.
Sources
Also known as GHSA-8rj9-9ch5-2f4r.