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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Plausible | Plausible Analytics | ≤ 3.2.1 | — |
References
- https://github.com/plausible/analytics/blob/v3.2.1/lib/plausible/site/traffic_change_notification.ex#L21 technical-description
- https://github.com/plausible/analytics/blob/v3.2.1/lib/plausible_web/controllers/site_controller.ex#L481-L494 technical-description
- https://abraxaslabs.tech/research/plausible-traffic-notify third-party-advisory
- https://github.com/plausible/analytics product
- VulnCheck Advisory: Plausible Analytics through 3.2.1 Mass Assignment via Traffic Change Notification Update third-party-advisory