CVE-2026-8181 (GCVE-0-2026-8181)
Vulnerability from cvelistv5
Published
2026-05-14 05:30
Modified
2026-05-14 10:46
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-287 - Improper Authentication
Summary
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.
References
Impacted products
Vendor Product Version
burstbv Burst Statistics – Privacy-Friendly WordPress Analytics (Google Analytics Alternative) Version: 3.4.0   ≤ 3.4.1.1
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      {
        "metrics": [
          {
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                "id": "CVE-2026-8181",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-14T10:38:46.502886Z",
                "version": "2.0.3"
              },
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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          "product": "Burst Statistics \u2013 Privacy-Friendly WordPress Analytics (Google Analytics Alternative)",
          "vendor": "burstbv",
          "versions": [
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              "lessThanOrEqual": "3.4.1.1",
              "status": "affected",
              "version": "3.4.0",
              "versionType": "semver"
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      ],
      "credits": [
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          "type": "finder",
          "value": "Chloe Chamberland"
        },
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          "type": "finder",
          "value": "PRISM"
        }
      ],
      "descriptions": [
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          "value": "The Burst Statistics \u2013 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."
        }
      ],
      "metrics": [
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            "baseSeverity": "CRITICAL",
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        },
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          "url": "https://plugins.trac.wordpress.org/browser/burst-statistics/tags/3.4.1.1/includes/Frontend/class-mainwp-proxy.php#L336"
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        },
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        },
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          "url": "https://plugins.trac.wordpress.org/browser/burst-statistics/tags/3.4.1.1/includes/Traits/trait-admin-helper.php#L205"
        },
        {
          "url": "https://github.com/Burst-Statistics/burst-statistics/blob/2488d3fa54045e7e5342b0445b9f6b5eaac9ea7c/includes/Frontend/class-mainwp-proxy.php#L385"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-05-11T14:17:08.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-05-13T16:44:16.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Burst Statistics 3.4.0 - 3.4.1.1 - Authentication Bypass to Admin Account Takeover"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-8181",
    "datePublished": "2026-05-14T05:30:29.145Z",
    "dateReserved": "2026-05-08T16:24:21.656Z",
    "dateUpdated": "2026-05-14T10:46:32.299Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
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      "dataType": "CVE_RECORD",
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    }
  }
}


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