# CVE-2026-109316: Grav Data Manager missing authorization in file deletion

Source: https://junglewise.ai/threats/cve-2026-109316-grav-data-manager-plugin-1-4-0-through-1-4-5-contains-a-missing  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-12. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-109316 · Severity: medium · CVSS 6.5 · Published 2026-10-12

Grav's Data Manager plugin is used to store and manage form submission data and other user information. A flaw in versions 1.4.0 through 1.4.5 allows unauthenticated attackers to delete stored data files, including form submissions, by sending a specially crafted request. This can result in loss of critical business data with no authentication required.

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

## Quick answers

**Is CVE-2026-109316 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-109316 being exploited in the wild.

**How severe is CVE-2026-109316?** Medium severity, with a CVSS score of 6.5, published 12 October 2026.

**Which products and versions are affected?** Grav Data Manager 1.4.0 through 1.4.5.

**Is there a fix for CVE-2026-109316?** Yes: fixed in Data Manager 1.4.6. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-109316 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-109316?** Check whether you run Grav Data Manager 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.

## How to fix

- Fixed in Data Manager 1.4.6

## Technical details

The Data Manager plugin's onPagesInitialized handler processes file deletion requests on admin routes without verifying the user's authentication status, authorization level, or a valid CSRF nonce. An attacker who knows a data type and filename can construct a DELETE request to remove files from the user/data/ directory. The vulnerability affects the classic Admin integration path and crosses the anonymous-to-privileged trust boundary.

## Affected products

- Grav Data Manager 1.4.0 through 1.4.5

## Timeline

- 2026-09-23: disclosed
- 2026-10-12: advisory

## References

- [https://github.com/getgrav/grav/security/advisories/GHSA-mh96-26mx-hf3g](https://github.com/getgrav/grav/security/advisories/GHSA-mh96-26mx-hf3g)
- [https://www.vulncheck.com/advisories/grav-data-manager-1.4.0-through-1.4.5-unauthenticated-file-deletion-via-admin](https://www.vulncheck.com/advisories/grav-data-manager-1.4.0-through-1.4.5-unauthenticated-file-deletion-via-admin)