CVE-2026-109316 getgrav CVE debrief

Who should care

Defenders responsible for Grav installations with the Data Manager plugin should assess exposure and prioritize upgrading to version 1.4.6 or later. This includes operators, platform administrators, vulnerability management teams, and security teams who need to verify exposure and implement remediation or compensating controls.

Why it matters

CVE-2026-109316 is a medium-severity vulnerability in Grav Data Manager that allows unauthenticated file deletion, potentially leading to data loss or tampering. Defenders should prioritize verifying exposure and upgrading to version 1.4.6 or later.

• Potential data loss due to unauthorized file deletion
• Increased risk of data tampering or corruption
• Potential disruption to Grav site operations
• Need for verification of exposure and remediation

Technical summary

The Grav Data Manager plugin versions 1.4.0 through 1.4.5 contain a missing authorization vulnerability that allows unauthenticated attackers to delete stored data files via the classic Admin integration. This vulnerability can lead to potential data loss or tampering. Defenders should prioritize verifying exposure and upgrading to version 1.4.6 or later. The vulnerability's technical framing involves a lack of authorization checks in the plugin's Admin integration, allowing unauthorized file deletion requests to succeed.

Defensive priority

Defenders should prioritize verifying exposure of Grav Data Manager plugin versions 1.4.0 through 1.4.5 and upgrading to version 1.4.6 or later.

Recommended defensive actions

• Verify exposure of Grav Data Manager plugin versions 1.4.0 through 1.4.5
• Upgrade to version 1.4.6 or later
• Monitor for potential unauthorized file deletion attempts
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and source item provide details on the vulnerability. Additional information on potential exploitation or impact is limited. Defenders should verify exposure and review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance. The CVE Program record and NIST NVD detail page offer source-provided CVE metadata and vulnerability assessments.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.