CVE-2026-30242

Description

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.

Risk Information

Base Score

8.5

MODERATE

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

EPSS Score

Exploitation Probability

0.013

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2026-30242 are fixed in Python-plane 1.2.3	Windows
Vulnerabilities CVE-2026-30242 are fixed in Python-plane for linux 1.2.3	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234