What is CVE-2026-12277?

CVE-2026-12277 is a high-severity vulnerability in Frontend File Manager Plugin, classified under CWE-73 EXTERNAL CONTROL OF FILE NAME OR PATH. CVSS score: 8.7/10. Published 2026-07-07.

How severe is CVE-2026-12277?

High severity. CVSS v3 base score is 8.7 out of 10.

Is CVE-2026-12277 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Frontend File Manager Plugin

CVE-2026-12277

The Frontend File Manager Plugin WordPress plugin through 23.6 does not validate a file path derived from user input before deleting the referenced file, allowing unauthenticated users to delete arbitrary files on the server (such as wp-config.php) when guest upload mode is enabled. Deleting wp-config.php forces the site into its setup routine, which can be leveraged toward a full site takeover.

EPSS: 0.003 (21.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H.

Affected products

Unknown Frontend File Manager Plugin — versions 0

Public proof-of-concept exploits

moritakaaz/CVE-2026-12277

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-12277?: CVE-2026-12277 is a high-severity vulnerability in Frontend File Manager Plugin, classified under CWE-73 EXTERNAL CONTROL OF FILE NAME OR PATH. CVSS score: 8.7/10. Published 2026-07-07.
How severe is CVE-2026-12277?: High severity. CVSS v3 base score is 8.7 out of 10.
Is CVE-2026-12277 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.