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

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.

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

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