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CVE-2026-119565
Plausible Analytics through 3.2.1 Mass Assignment via Traffic Change Notification Update
Medium5.3EPSS 0.31%
- Published
- Updated
- Reserved
- Assigned by
- VulnCheck
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| VulnCheckCNA (assigner) | 4.0 | Medium5.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N |
| VulnCheckCNA (assigner) | 3.1 | Medium4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| NVDNVD · Deferred | 4.0 | Medium5.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
- EPSS (exploitation in 30 days)
- 0.31% · top 76% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
Affected products
Plausible · Plausible Analytics
- affected ≤ 3.2.1
References (5)
- https://github.com/plausible/analytics/blob/v3.2.1/lib/plausible/site/traffic_change_notification.ex#L21 (opens in a new tab)technical-description
- https://github.com/plausible/analytics/blob/v3.2.1/lib/plausible_web/controllers/site_controller.ex#L481-L494 (opens in a new tab)technical-description
- https://abraxaslabs.tech/research/plausible-traffic-notify (opens in a new tab)third-party-advisory
- https://github.com/plausible/analytics (opens in a new tab)product
- VulnCheck Advisory: Plausible Analytics through 3.2.1 Mass Assignment via Traffic Change Notification Update (opens in a new tab)third-party-advisory
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-119565)Record last updated .