CVE-2026-105630
Plane is an open-source project management tool. Prior to 1.4.0, an authenticated low-privilege workspace member, including a Guest, can upload an image/svg+xml file as a generic or issue attachment. The file retains the attacker-controlled Content-Type, and the asset-download endpoint creates a presigned URL with Content-Disposition: inline. In the default self-hosted MinIO deployment, the asset URL is served from the same origin as the Plane application, allowing embedded SVG JavaScript to execute in the application's security context. A victim, including a workspace administrator, who opens the link can have the session compromised through stored XSS, leading to account takeover. This issue is fixed in 1.4.0.
- CVSS 3.1
- 8.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N - EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 11% of CVEs (scores of 2026-10-25)
- CWEs
- CWE-79, CWE-434, CWE-616
- Published
- Modified
- Record from
- the NVD, synced
References
- https://github.com/makeplane/plane/commit/9dff20e04808286acb372119d88c666b802b1d50
- https://github.com/makeplane/plane/pull/9312
- https://github.com/makeplane/plane/releases/tag/v1.4.0
- https://github.com/makeplane/plane/security/advisories/GHSA-ch8j-vr4r-qf6h
- https://github.com/makeplane/plane/security/advisories/GHSA-ch8j-vr4r-qf6h