CVE-2026-8181

CRITICAL EPSS 96.2%
Published May 14, 20261mo ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Critical
Find Similar
Published May 14, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago

Description

The Burst Statistics – Privacy-Friendly WordPress Analytics (Google Analytics Alternative) plugin for WordPress is vulnerable to Authentication Bypass in versions 3.4.0 to 3.4.1.1. This is due to incorrect return-value handling in the `is_mainwp_authenticated()` function when validating application passwords from the Authorization header. This makes it possible for unauthenticated attackers, with knowledge of an administrator username, to impersonate that administrator for the duration of the request by supplying any random Basic Authentication password achieving privilege escalation.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
96.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-287 Improper Authentication Authentication

References 10

  • github.com https://github.com/Burst-Statistics/burst-statistics/blob/2488d3fa54045e7e5342b0445b9f6b5eaac9ea7c/includes/Frontend/class-mainwp-proxy.php#L385
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/burst-statistics/tags/3.4.1.1/includes/Frontend/class-mainwp-proxy.php#L314
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/burst-statistics/tags/3.4.1.1/includes/Frontend/class-mainwp-proxy.php#L328
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/burst-statistics/tags/3.4.1.1/includes/Frontend/class-mainwp-proxy.php#L336
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/burst-statistics/tags/3.4.1.1/includes/Traits/trait-admin-helper.php#L205
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/burst-statistics/trunk/includes/Frontend/class-mainwp-proxy.php#L314
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/burst-statistics/trunk/includes/Frontend/class-mainwp-proxy.php#L328
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/burst-statistics/trunk/includes/Frontend/class-mainwp-proxy.php#L336
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/burst-statistics/trunk/includes/Traits/trait-admin-helper.php#L205
  • wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/8ca830d6-3d3c-4026-85cd-8447b8a568d3?source=cve

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.