CVE-2026-11565 Advanced File Manager CVE debrief

Who should care

Administrators of WordPress sites using the Advanced File Manager plugin should take immediate action to update the plugin and restrict file-manager access to prevent exploitation. Additionally, security teams and vulnerability management teams should review the affected scope and implement compensating controls for exposed systems while remediation is scheduled and verified. Operators of affected platforms should also review relevant monitoring, detection, and logs for exposed assets that need extra review.

Technical summary

The Advanced File Manager WordPress plugin before 5.4.13 does not perform capability checks in several of its file management AJAX actions. This allows users with any role to which an administrator has granted file-manager access, as low as Subscriber, to read arbitrary files on the server, including sensitive configuration files, and to overwrite existing non-PHP files. The vulnerability can be exploited to compromise administrator accounts and the whole site.

Defensive priority

High-priority defensive actions are required to address this vulnerability in the Advanced File Manager WordPress plugin.

Recommended defensive actions

• Update the Advanced File Manager plugin to version 5.4.13 or later
• Restrict file-manager access to trusted roles
• Monitor server logs for suspicious file access and modification attempts
• Implement additional security measures to protect sensitive configuration files
• 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.

Evidence notes

Evidence from the NVD and WPScan indicates that the Advanced File Manager plugin is vulnerable to unauthorized file access and modification. The vulnerability allows users with file-manager access to read arbitrary files, including sensitive configuration files, and overwrite existing non-PHP files. This can be leveraged to compromise administrator accounts and the whole site. Defenders should verify the plugin version, review file access logs, and monitor for suspicious activity.

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.