Advanced Country Blocker <= 2.3.1 - Unauthenticated Authorization Bypass via Insecure Default Secret Key

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-1675
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-02-07 09:16:01 UTC
Updated2026-04-08 17:21:11 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Problem Types: CWE-1188 | CWE-1188 CWE-1188 Initialization of a Resource with an Insecure Default

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Brstefanovic Advanced Country Blocker affected 2.3.1 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/advanced-country-blocker/tags/2.3.1/advanced-country-... [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/30747988-83f9-41f9-9bc5-1f533... [email protected] www.wordfence.com
plugins.trac.wordpress.org/changeset/3455225 [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/advanced-country-blocker/tags/2.3.1/advanced-country-... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/advanced-country-blocker/tags/2.3.1/advanced-country-... [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Hector Flores (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-02-06T20:24:09.000ZDisclosed
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