Fense Proxy & VPN Blocker <= 3.0.1 - Missing Authorization to Unauthenticated Plugin Option/Transient Deletion via fense_bpvt_save_settings AJAX Action
| CVE | CVE-2026-8616 |
|---|---|
| CVSS | 5.3 (Medium) |
| Publicly Published | July 16, 2026 |
| Last Updated | July 17, 2026 |
| Researcher |
Legion Hunter
|
Description
The Fense Proxy & VPN Blocker plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check and missing nonce validation on the fense_bpvt_save_settings() function in versions up to, and including, 3.0.1. The callback is registered to both wp_ajax_* and wp_ajax_nopriv_* hooks and unconditionally calls delete_option() on four plugin options and delete_transient() on three transients tied to the plugin's API key cache and settings. This makes it possible for unauthenticated attackers to delete plugin options and transients, effectively resetting the plugin's API key/data cache and forcing the plugin to refetch state.
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Vulnerability Details for Fense Block Vpn & Proxy
| Software Type | Plugin |
|---|---|
| Software Slug | fense-block-vpn-proxy (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 3.0.2, or a newer patched version |
| Affected Version |
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| Patched Version |
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