CVE-2026-8378

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 v3.1

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

EPSS

0.23% chance of exploitation in the next 30 days, 13th percentile

Published

2026-06-23

Proof-of-concept exploits (1)

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

References

• CVE Record
• NVD entry

Related

• CVE-2026-83772
• CVE-2026-8379
• CVE-2026-83524
• CVE-2026-8380
• CVE-2026-8349
• CVE-2026-8383