CVE-2026-14489
The WHMCS Bridge plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the connect() function in all versions up to, and including, 6.9.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.03%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The WHMCS Bridge plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the connect() function in all versions up to, and including, 6.9. This makes it possible for authenticated attackers, with Custom-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.03% probability · 62th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-434
- Source
- security@wordfence.com
References
- https://plugins.trac.wordpress.org/browser/whmcs-bridge/tags/6.9/bridge.init.php#L482
- https://plugins.trac.wordpress.org/browser/whmcs-bridge/tags/6.9/bridge.init.php#L809
- https://plugins.trac.wordpress.org/browser/whmcs-bridge/tags/6.9/bridge.init.php#L852
- https://plugins.trac.wordpress.org/browser/whmcs-bridge/tags/6.9/includes/request.class.php#L296
- https://plugins.trac.wordpress.org/browser/whmcs-bridge/tags/6.9/includes/request.class.php#L309
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c4fe6dcc-93c8-4956-85ae-a1125bc84509?source=cve
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.