Vulnerability · Published Feb 7, 2026 · Assigned by Wordfence
CVE-2026-1675Advanced Country Blocker <= 2.3.1 - Unauthenticated Authorization Bypass via Insecure Default Secret Key
Medium 5.3
In plain English
A medium-severity security flaw in Advanced Country Blocker from brstefanovic. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities).
Official description
The Advanced Country Blocker plugin for WordPress is vulnerable to Authorization Bypass in all versions up to, and including, 2.3.1 due to the use of a predictable default value for the secret bypass key created during installation without requiring users to change it. This makes it possible for unauthenticated attackers to bypass the geolocation blocking mechanism by appending the key to any URL on sites where the administrator has not changed the default value.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| brstefanovic | Advanced Country Blocker | 0 – through 2.3.1 |
Weakness: CWE-1188 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/30747988-83f9-41f9-9bc5-1f533bc4cb94?source=cve
- https://plugins.trac.wordpress.org/browser/advanced-country-blocker/tags/2.3.1/advanced-country-blocking.php#L278
- https://plugins.trac.wordpress.org/browser/advanced-country-blocker/tags/2.3.1/advanced-country-blocking.php#L336
- https://plugins.trac.wordpress.org/browser/advanced-country-blocker/tags/2.3.1/advanced-country-blocking.php#L420
- https://plugins.trac.wordpress.org/changeset/3455225/