burstbv Burst Statistics Plugin up to 3.4.1.1 on WordPress is_mainwp_authenticated improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability was found in burstbv Burst Statistics Plugin up to 3.4.1.1 on WordPress. It has been declared as critical. Affected is the function is_mainwp_authenticated. Such manipulation leads to improper authentication. This vulnerability is traded as CVE-2026-8181. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in burstbv Burst Statistics Plugin up to 3.4.1.1 on WordPress. It has been rated as critical. Affected by this issue is the function is_mainwp_authenticated. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was shared by Chloe Chamberland. The advisory is shared for download at wordfence.com. This vulnerability is handled as CVE-2026-8181 since 05/08/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

Upgrading to version 3.4.1.1 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector (Wordfence): 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Burst Statistics Plugin 3.4.1.1

Timelineinfo

05/08/2026 CVE reserved
05/14/2026 +6 days Advisory disclosed
05/14/2026 +0 days VulDB entry created
05/14/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: wordfence.com
Researcher: Chloe Chamberland
Status: Confirmed

CVE: CVE-2026-8181 (🔒)
GCVE (CVE): GCVE-0-2026-8181
GCVE (VulDB): GCVE-100-363824

Entryinfo

Created: 05/14/2026 08:47
Changes: 05/14/2026 08:47 (67)
Complete: 🔍
Cache ID: 216::103

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