{"id":"CVE-2026-119565","title":"Plausible Analytics through 3.2.1 Mass Assignment via Traffic Change Notification Update","summary":"Plausible Analytics through 3.2.1 contains a mass assignment vulnerability in update_traffic_change_notification that allows authenticated site editors to reassign notifications by supplying a site_id parameter. Attackers can submit traf…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","cvssSource":"cna","cwe":["CWE-915"],"vendor":"Plausible","product":"Plausible Analytics","affected":["analytics <= 3.2.1"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-30T16:20:12.560587Z"},"published":"2026-10-30","updated":"2026-10-30","sourceUpdated":"2026-10-30T16:20:23.056Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-119565","references":[{"url":"https://github.com/plausible/analytics/blob/v3.2.1/lib/plausible/site/traffic_change_notification.ex#L21"},{"url":"https://github.com/plausible/analytics/blob/v3.2.1/lib/plausible_web/controllers/site_controller.ex#L481-L494"},{"url":"https://abraxaslabs.tech/research/plausible-traffic-notify"},{"url":"https://github.com/plausible/analytics"},{"url":"https://www.vulncheck.com/advisories/plausible-analytics-through-3.2.1-mass-assignment-via-traffic-change-notification-update","label":"VulnCheck Advisory: Plausible Analytics through 3.2.1 Mass Assignment via Traffic Change Notification Update"}],"tags":["cve.org"],"epss":0.00309,"epssPercentile":0.23883,"ingestedAt":"2026-11-05T16:24:31.073Z","slug":"CVE-2026-119565","body":"## Overview\n\nPlausible Analytics through 3.2.1 contains a mass assignment vulnerability in update_traffic_change_notification that allows authenticated site editors to reassign notifications by supplying a site_id parameter. Attackers can submit traffic_change_notification[site_id] set to another site's primary key via PUT /sites/:domain/traffic-change-notification/:type to receive that site's traffic alerts and visitor figures.\n\n## Affected\n\n- `analytics <= 3.2.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}