{"id":"CVE-2026-8181","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-8181","generatedAt":"2026-10-28T04:45:45.699Z","title":"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.","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.","published":"2026-05-14T06:16:26.000Z","lastModified":"2026-06-17T11:03:35.000Z","status":"Deferred","sourceIdentifier":"security@wordfence.com","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-287"],"affected":[],"epss":{"score":0.14608,"percentile":0.96633,"date":"2026-10-27","history":[{"date":"2026-09-24","score":0.03012,"percentile":0.8686},{"date":"2026-10-25","score":0.14608,"percentile":0.96627}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 14.6%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-10-25T00:00:00.000Z","detail":{"to":0.14608,"from":0.03012,"percentile":0.96627},"summary":"EPSS moved from 3.0% to 14.6% probability of exploitation in the next thirty days."}],"references":[{"url":"https://github.com/Burst-Statistics/burst-statistics/blob/2488d3fa54045e7e5342b0445b9f6b5eaac9ea7c/includes/Frontend/class-mainwp-proxy.php#L385","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/burst-statistics/tags/3.4.1.1/includes/Frontend/class-mainwp-proxy.php#L314","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/burst-statistics/tags/3.4.1.1/includes/Frontend/class-mainwp-proxy.php#L328","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/burst-statistics/tags/3.4.1.1/includes/Frontend/class-mainwp-proxy.php#L336","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/burst-statistics/tags/3.4.1.1/includes/Traits/trait-admin-helper.php#L205","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/burst-statistics/trunk/includes/Frontend/class-mainwp-proxy.php#L314","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/burst-statistics/trunk/includes/Frontend/class-mainwp-proxy.php#L328","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/burst-statistics/trunk/includes/Frontend/class-mainwp-proxy.php#L336","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/burst-statistics/trunk/includes/Traits/trait-admin-helper.php#L205","source":"security@wordfence.com"},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/8ca830d6-3d3c-4026-85cd-8447b8a568d3?source=cve","source":"security@wordfence.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-8181","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}