CVE-2026-119565
CVE-2026-119565
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 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.
Vulnerability class: Mass Assignment
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Weakness classification (CWE)
References
- github.com/plausible/analytics/blob/v3.2.1/lib/plausible/site/traffic_change_no… (technical-description)
- github.com/plausible/analytics/blob/v3.2.1/lib/plausible_web/controllers/site_c… (technical-description)
- abraxaslabs.tech/research/plausible-traffic-notify (third-party-advisory)
- github.com/plausible/analytics (product)
- www.vulncheck.com/advisories/plausible-analytics-through-3.2.1-mass-assignment-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-119565?
- CVE-2026-119565 is a medium-severity vulnerability, classified under Improperly Controlled Modification of Dynamically-Determined Object Attributes. CVSS score: 4.3/10. Published 2026-10-30.
- How severe is CVE-2026-119565?
- Medium severity. CVSS v3 base score is 4.3 out of 10.