# CVE-2026-100672: Grav Comments plugin unauthenticated information disclosure

Source: https://junglewise.ai/threats/cve-2026-100672-the-comments-plugin-getgrav-grav-plugin-comments-for-grav-cms  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-26. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-100672 · Severity: high · CVSS 7.5 · Published 2026-09-26

The Comments plugin for Grav CMS, a content management system for building websites, allows unauthenticated visitors to retrieve sensitive comment data including commenter email addresses and server file paths by accessing a specific admin endpoint. An attacker can exploit this without any credentials or special access to harvest private information about site visitors. This data exposure could aid further attacks against website users and administrators.

Vendors: [Grav](https://junglewise.ai/threats/vendors/grav).

## Quick answers

**Is CVE-2026-100672 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-100672 being exploited in the wild.

**How severe is CVE-2026-100672?** High severity, with a CVSS score of 7.5, published 26 September 2026.

**Which products and versions are affected?** Grav Comments plugin through 1.2.10.

**Is there a fix for CVE-2026-100672?** A patch was published on 2026-09-26: version 1.2.11 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-100672 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-100672?** Check whether you run Grav Comments plugin at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The plugin's admin handler checks isAdmin() to verify the admin service is registered—not that the user is authenticated—and returns comment data as JSON via the /admin/comments/page endpoint before the Admin plugin's authentication layer runs. The vulnerability exploits the Grav plugin initialization order: the Comments handler branches on service presence rather than session authentication, calls exit() to bypass further processing, and includes plaintext email addresses and absolute filesystem paths in its JSON response. The fix in version 1.2.11 adds proper authentication checks for admin.comments or admin.super permissions and removes the filePath field.

## Affected products

- Grav Comments plugin through 1.2.10

## Timeline

- 2026-09-26: disclosed
- 2026-09-26: patched: version 1.2.11 released

## References

- [https://github.com/getgrav/grav/security/advisories/GHSA-3cq9-f4pf-hq59](https://github.com/getgrav/grav/security/advisories/GHSA-3cq9-f4pf-hq59)
- [https://www.vulncheck.com/advisories/grav-plugin-comments-before-1.2.11-unauthenticated-information-disclosure](https://www.vulncheck.com/advisories/grav-plugin-comments-before-1.2.11-unauthenticated-information-disclosure)