All vulnerabilities
CVE-2026-102986GHSA-8688-h9x2-v83m

Plane: Any Authenticated User Can Upload and Delete Assets in Any Published Project via /api/public/assets/v2/anchor/{anchor}/

makeplane plane
Open in ThreatlineRecord JSON
CVSS
8.1High
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 15 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.42%Chance of exploitation activity in the next 30 days, higher than 35% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in1.4.0Fixed versionGitHub
Published14 Oct 2026Updated 15 Oct 2026CVE List

What fixes it

  • 1.4.0makeplane/plane, otherGitHub

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

Plane is an open-source project management tool. In 1.3.1 and earlier, EntityAssetEndpoint at the public project asset endpoint /api/public/assets/v2/anchor/{anchor}/ requires authentication for write operations but does not verify workspace or project membership. An authenticated user who knows a published project's public DeployBoard.anchor can create FileAsset records in that project and soft-delete existing assets by identifier, allowing cross-workspace file injection, storage abuse, and data loss. The issue is fixed in version 1.4.0.

Text from CVE List

Affected versions 2

  • planeaffected: < 1.4.0CVE List
  • makeplane/plane, other<= 1.3.1GitHub

References 4