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CVE-2025-69284VulnerabilityPublished Updated

CVE-2025-69284: makeplane plane · Improper Access Control

Affects makeplane planeSource CVE Database V5

0

Not known to be exploited · CVSS 4.3 Medium : upgrade to 1.2.0 when convenient.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score
4.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.2.0
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 Jan 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

Upgrade plane and makeplane/plane to 1.2.0.

Affected software

ProductAffectedFixed in
makeplaneplaneAffected
  • <1.2.0
Fixed in
  • 1.2.0
GitHubmakeplane/planepkg:github/makeplane/planeOther threatsAffected
  • <1.2.0
Fixed in
  • 1.2.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

European organizations should immediately upgrade Plane to version 1.2.0 or later to remediate this vulnerability. If upgrading is not immediately feasible, organizations should implement access control measures to restrict guest user permissions, specifically blocking access to the /api/workspaces/:slug/members/ endpoint. Network-level controls such as web application firewalls (WAFs) can be configured to detect and block unauthorized API requests from guest users. Additionally, organizations should audit workspace membership visibility settings and review user roles to minimize exposure of sensitive user information. Employee awareness training should emphasize the risks of phishing and social engineering, especially targeting users identified through such information leaks. Monitoring and logging API access patterns can help detect anomalous enumeration attempts. Finally, organizations should maintain an inventory of Plane deployments and ensure timely application of security patches in the future.

Description

Plane is an an open-source project management tool. In plane.io, a guest user doesn't have a permission to access https[:]//app[.]plane[.]so/[:]slug/settings. Prior to Plane version 1.2.0, a problem occurs when the `/api/workspaces/:slug/members/` is accessible by guest and able to list of users on a specific workspace that they joined. Since the `display_name` in the response is actually the handler of the email, a malicious guest can still identify admin users' email addresses. Version 1.2.0 fixes this issue.

References

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