CVE-2026-8378 — MEDIUM (5.4)

Vulnerability Description

The Frontend File Manager Plugin WordPress plugin through 23.6 does not sanitise nor escape a filename submitted to the frontend file-rename endpoint before storing it as post meta and rendering it back on the admin File Manager listing, leading to a Stored Cross-Site Scripting vulnerability exploitable by users with Subscriber-level access and above against an administrator viewing the file management interface.

CVSS Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

References

https://wpscan.com/vulnerability/19f5dd94-b16c-4ad2-9586-d15ddecf9805/

FAQ

What is CVE-2026-8378?

CVE-2026-8378 is a vulnerability with a CVSS score of 5.4 (MEDIUM). The Frontend File Manager Plugin WordPress plugin through 23.6 does not sanitise nor escape a filename submitted to the frontend file-rename endpoint before storing it as post meta and rendering it ba...

How severe is CVE-2026-8378?

CVE-2026-8378 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-8378?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.