CVE-2026-16292 Frontend File Manager Plugin CVE debrief

Who should care

WordPress administrators and users with Frontend File Manager Plugin installed should verify plugin version and configuration. They should check for guest upload settings and restrict if possible. Additionally, they should validate file-metadata update actions for CSRF protection to prevent potential attacks.

Technical summary

The Frontend File Manager Plugin WordPress plugin through 23.6 does not perform nonce validation on one of its file-metadata update actions, allowing an attacker to modify the metadata of a logged-in user's uploaded file via a CSRF attack. This can be leveraged to download that file. When guest uploads are enabled, the same action is reachable unauthenticated against any user's file. The plugin's file-metadata update actions lack proper CSRF protection, which can lead to unauthorized modifications of file metadata.

Defensive priority

Low-priority vulnerability with limited attack surface; verify affected systems and apply patches if available.

Recommended defensive actions

• Verify plugin version and configuration for Frontend File Manager Plugin
• Check for guest upload settings and restrict if possible
• Validate file-metadata update actions for CSRF protection
• 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 evidence for this CVE is limited. The CVE record was published on 2026-08-02T06:16:40.673Z and has not been modified since then. The Frontend File Manager Plugin WordPress plugin through 23.6 does not perform nonce validation on one of its file-metadata update actions, allowing an attacker to modify the metadata of a logged-in user's uploaded file via a CSRF attack. When guest uploads are enabled, the same action is reachable unauthenticated against any user's file. Defenders should verify plugin version and configuration for Frontend File Manager Plugin; check for guest upload settings and restrict if possible; and validate file-metadata update actions for CSRF protection.

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.