CVE-2026-3666
HIGHCVSS v3
8.8
HIGH
EPSS Score
—
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
The wpForo Forum plugin for WordPress is vulnerable to arbitrary file deletion in all versions up to, and including, 2.4.16. This is due to a missing file name/path validation against path traversal sequences. This makes it possible for authenticated attackers, with subscriber level access and above, to delete arbitrary files on the server by embedding a crafted path traversal string in a forum post body and then deleting the post.
Technical Details
- CVSS v3 Vector
- 3.1
- Published
- 4/4/2026
- Last Modified
- 4/7/2026
Frequently Asked Questions
What is CVE-2026-3666?
The wpForo Forum plugin for WordPress is vulnerable to arbitrary file deletion in all versions up to, and including, 2.4.16. This is due to a missing file name/path validation against path traversal sequences. This makes it possible for authenticated attackers, with subscriber level access and above, to delete arbitrary files on the server by embedding a crafted path traversal string in a forum post body and then deleting the post.
Is CVE-2026-3666 actively exploited?
Active exploitation of CVE-2026-3666 has not been confirmed. The EPSS score is N/A%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-3666?
CVE-2026-3666 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string 3.1.
Is CVE-2026-3666 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.