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GHSA-87x4-j8vh-p5qf

HighCVSS 7.5 / 10
Published Mar 5, 2026·Last modified Mar 9, 2026
Affected Components(0)

No affected components available

Description

Executive Summary

A security vulnerability exists in the Plane project management platform that allows unauthenticated attackers to enumerate workspace members and extract sensitive information including email addresses, user roles, and internal identifiers. The vulnerability stems from Django REST Framework permission classes being incorrectly configured to allow anonymous access to protected endpoints.

This vulnerability enables attackers to:

  • Enumerate all members of any workspace without authentication
  • Extract user email addresses and personally identifiable information (PII)
  • Identify administrative accounts for targeted attacks
  • Map organizational structure and user roles
  • Conduct reconnaissance for social engineering attacks

Affected Endpoints:

GET /api/public/workspaces/{workspace_slug}/members/
GET /api/public/workspaces/{workspace_slug}/projects/{project_id}/members/

A fix is available at https://github.com/makeplane/plane/releases/tag/v1.2.3.

Risk Scores
Base Score
7.5

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information.

Threat Intelligence
6.9

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
0.38%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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