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TI-2026-23475 Aliases CVE-2026-30242GHSA-fpx8-73gf-7x73

Plane: SSRF via Incomplete IP Validation in Webhook URL Serializer

Priority LOW 37CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

Plane is an an open-source project management tool. Prior to version 1.2.3, the webhook URL validation in plane/app/serializers/webhook.py only checks ip.is_loopback, allowing attackers with workspace ADMIN role to create webhooks pointing to private/internal network addresses (10.x.x.x, 172.16.x.x, 192.168.x.x, 169.254.169.254, etc.). When webhook events fire, the server makes requests to these internal addresses and stores the response — enabling SSRF with full response read-back. This issue has been patched in version 1.2.3.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00375 31st percentileScored 2026-11-07
Fix Fixed plane (makeplane): 1.2.3plane (PyPI): 1.2.3

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 1.2.31.2.3Patch availableCNA
—plane (PyPI)before 1.2.31.2.3Patch availableGHSA-fpx8-73gf-7x73
  • plane Vendormakeplane Affected before 1.2.3 Fixed in 1.2.3 Patch available CNA
  • plane (PyPI) Vendor— Affected before 1.2.3 Fixed in 1.2.3 Patch available GHSA-fpx8-73gf-7x73

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:plane:plane:*:*:*:*:*:*:*:*before 1.2.3Vulnerablemakeplane
  • cpe:2.3:a:plane:plane:*:*:*:*:*:*:*:* Versions before 1.2.3 Vulnerable ·makeplane

Remediation

  • Fix · CNA plane (makeplane) Fixed in 1.2.3
  • Fix · GHSA-fpx8-73gf-7x73 plane (PyPI) Fixed in 1.2.3 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-30242
  2. 2026-10-03 Alias added: GHSA-fpx8-73gf-7x73

References

Advisory 2

Other 2

  • 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