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Vulnerability · Published May 14, 2026 · Assigned by Wordfence

CVE-2026-8181Burst Statistics 3.4.0 - 3.4.1.1 - Authentication Bypass to Admin Account Takeover

Critical 9.8

In plain English

A critical-severity improper authentication in Burst Statistics – Privacy-Friendly WordPress Analytics (Google Analytics Alternative) from burstbv. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 14.6% (higher than 97% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei, public proof-of-concept code.

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)14.6%top 3.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling2Nuclei, Public PoC

Official 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 products (as reported)

VendorProductVersions
burstbv Burst Statistics – Privacy-Friendly WordPress Analytics (Google Analytics Alternative) 3.4.0 – through 3.4.1.1

Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References