PatchSiren cyber security CVE debrief

CVE-2026-8379 Frontend File Manager Plugin CVE debrief

The CVE-2026-8379 vulnerability affects the Frontend File Manager Plugin for WordPress through version 23.6. This plugin does not properly enforce its nonce check on the file download handler. As a result, unauthenticated attackers can download files uploaded by any user through the Frontend File Manager Plugin WordPress plugin by iterating identifiers. The CVSS score for this vulnerability is 7.5, indicating a high severity level. The vulnerability was published on June 23, 2026, at 07:16:21 UTC and modified at 14:52:58 UTC on the same day. Evidence from the source indicates that this issue is related to the plugin's insufficient validation of file download requests.

Vendor: Frontend File Manager Plugin
Product: Frontend File Manager Plugin for WordPress
CVSS: HIGH 7.5
CISA KEV: Not listed in stored evidence
Original CVE published: 2026-06-23
Original CVE updated: 2026-06-23
Advisory published: 2026-06-23
Advisory updated: 2026-06-23

Who should care

Administrators and users of the Frontend File Manager Plugin for WordPress should be aware of this vulnerability, especially if they have not updated to a patched version. Given the high severity score of 7.5, immediate attention is recommended to prevent potential exploitation. Security teams responsible for monitoring and patching vulnerabilities in WordPress plugins should prioritize this CVE.

Technical summary

The Frontend File Manager Plugin for WordPress through version 23.6 is vulnerable due to a lack of proper nonce checks in its file download handler. This allows unauthenticated attackers to download files uploaded by any user. The plugin's failure to validate download requests adequately exposes users to potential data leaks. The Common Vulnerability Scoring System (CVSS) score of 7.5 reflects the high impact of this vulnerability, particularly in terms of confidentiality. The vulnerability's details were made public on June 23, 2026.

Defensive priority

High priority should be given to patching or mitigating this vulnerability due to its high CVSS score of 7.5 and the potential for data exposure. Immediate action is recommended to secure instances of the Frontend File Manager Plugin.

Recommended defensive actions

Update the Frontend File Manager Plugin to a version that fixes the nonce check vulnerability.
Restrict access to sensitive files and monitor for suspicious download requests.
Implement additional security measures such as Web Application Firewalls (WAFs) to detect and prevent exploitation attempts.
Regularly review and update plugins and themes to ensure they are current and secure.
Consider temporarily disabling the file download feature if an immediate update is not possible.

Evidence notes

The CVE-2026-8379 entry was sourced from official vulnerability databases and references. According to the NVD, the vulnerability was made public on June 23, 2026. Evidence from WPScan and other sources corroborates the details of the vulnerability. However, specific details about the vendor's response or patches are limited in the provided corpus.

Official resources

This article is AI-assisted and based on the supplied source corpus.