CVE-2026-30242 json
Plane: SSRF via Incomplete IP Validation in Webhook URL Serializer
published 2026-03-05 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-10082 , GHSA-fpx8-73gf-7x73
- cvss
- 8.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 31%
- public exploits
- 0
- none known
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.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 8 mo ago
Exploit prediction
0.38% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N |
| GitHub | 3.1 | 8.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N |
| NVD | 3.1 | 8.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | plane | <1.2.3 |
1.2.3 |
Affected products
- makeplane plane
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
github.com
/makeplane/plane/security/advisories/GHSA-fpx8-73gf-7x73
web, vendor-advisory
-
github.com
/makeplane/plane/releases/tag/v1.2.3
web, release-notes
-
nvd.nist.gov
/vuln/detail/CVE-2026-30242
advisory
-
github.com
/makeplane/plane
package
Sources
- CVE List CVE-2026-30242
- GitHub Advisory GHSA-fpx8-73gf-7x73
- NVD CVE-2026-30242
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.