Vulnerability · Published May 3, 2026 · Assigned by WPScan

CVE-2026-5337Frontend File Manager Plugin <= 23.6 - Subscriber+ Arbitrary Download Access via IDOR

Medium 6.5

In plain English

A medium-severity authorization bypass via user-controlled key in Frontend File Manager Plugin from Unknown. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.2%top 88.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

During the analysis, it was identified that authenticated attackers with Subscriber-level access or higher are able to perform an Insecure Direct Object Reference (IDOR) attack. This vulnerability exists because the Frontend File Manager Plugin WordPress plugin through 23.6 does not properly validate user authorization for the requested uploaded file when processing download requests. By modifying the value of the 'file_id' parameter in the download endpoint (e.g., http://localhost/?do=wpfm_download&file_id=40&nm_file_nonce=a36fb893f1), an attacker can access files belonging to other users, including privileged users such as administrators. This allows unauthorized access/read to sensitive data stored within the application.

Affected products (as reported)

Vendor	Product	Versions
Unknown	Frontend File Manager Plugin	0 – through 23.6

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References

https://wpscan.com/vulnerability/3e28aa78-3227-474a-b1db-1f5ea2c42d14/ exploit, vdb-entry, technical-description