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CVE-2026-8181

CRITICAL 9.8 CVSS 3.1
Published
May 14, 2026
Last modified
June 17, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-287
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Affected WordPress components

  • Burst Statistics – Simple WordPress Analytics (Google Analytics Alternative) Plugin · burst-statistics
    Confirmed match Active
    From 3.4.0 (including) to 3.4.1.1 (including)
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • burstbv Burst Statistics – Privacy-Friendly WordPress Analytics (Google Analytics Alternative) — From 3.4.0 (including) to 3.4.1.1 (including)

References

  • 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
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/8ca830d6-3d3c-4026-85cd-8447b8a568d3?source=cve
  • nvd.nist.gov Official NVD record