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TI-2026-22293 Aliases CVE-2026-27949

Plane Exposes User Email (PII and part of credential) in GET Parameter

Priority LOW 19CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-200.

Summary

Plane is an an open-source project management tool. Prior to 1.3.0, a vulnerability was identified in Plane's authentication flow where a user's email address is included as a query parameter in the URL during error handling (e.g., when an invalid magic code is submitted). Transmitting personally identifiable information (PII) via GET request query strings is classified as an insecure design practice. The affected code path is located in the authentication utility module (packages/utils/src/auth.ts). This vulnerability is fixed in 1.3.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00174 6th percentileScored 2026-11-07
Fix Fixed plane (makeplane): 1.3.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
makeplaneplanebefore 1.3.01.3.0Patch availableCNA
  • plane Vendormakeplane Affected before 1.3.0 Fixed in 1.3.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:plane:plane:*:*:*:*:*:*:*:*before 1.3.0Vulnerablemakeplane
  • cpe:2.3:a:plane:plane:*:*:*:*:*:*:*:* Versions before 1.3.0 Vulnerable ·makeplane

Remediation

  • Fix · CNA plane (makeplane) Fixed in 1.3.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-27949

References

Advisory 1

  • TI-2024-32097 Plane allows server side request forgery via /_next/image endpoint CVSS 3.1CRITICAL 9.3
  • TI-2026-34237 Authorization bypass in makeplane plane CVSS 3.1HIGH 8.3
  • TI-2023-02127 Plane v0.7.1 - Unauthorized access to files CVSS 3.1HIGH 7.5
  • TI-2026-28725 Plane has a Server-Side Request Forgery (SSRF) in Favicon Fetching CVSS 3.1HIGH 7.7
  • TI-2026-28361 Plane IDOR: Cross-Project Issue Date Modification via Bulk Update Endpoint CVSS 3.1HIGH 7.7
  • TI-2023-14603 Plane 0.7.1 - Insecure file upload CVSS 3.1HIGH 7.1
See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences