Vulnerability · Published Jun 10, 2026 · Assigned by GitHub_M
CVE-2026-46558Plane: Cross-workspace asset authorization bypass lets any authenticated user read, copy, delete, and overwrite assets in other Plane workspaces
High 8.3
In plain English
A high-severity authorization bypass via user-controlled key in plane from makeplane. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Severity (CVSS 3.1)8.3High
Exploit odds (30 days)0.3%top 78.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack tooling1Public PoC
Official description
Plane is an open-source project management tool. Prior to version 1.3.1, there is a cross-workspace asset authorization bypass lets any authenticated user read, copy, delete, and overwrite assets in other Plane workspaces. This issue has been patched in version 1.3.1.
Affected products (as reported)
Weakness: CWE-639, CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
References
- https://github.com/makeplane/plane/security/advisories/GHSA-qw87-v5w3-6vxx x_refsource_CONFIRM
- https://github.com/makeplane/plane/releases/tag/v1.3.1 x_refsource_MISC