Improper input validation in Makeplane Plane
CVE-2026-111869
A vulnerability was identified in makeplane plane up to 1.4.2. Impacted is an unknown function of the component API Endpoint. Such manipulation of the argument X-Forwarded-For leads to reliance on untrusted inputs in a security decision. It is possible to launch the attack remotely. The exploit is publicly available and might be used.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Makeplane Plane — versions 1.4.0, 1.4.1, 1.4.2
Weakness classification (CWE)
References
- vuldb.com/vuln/421581 (technical-description, vdb-entry)
- vuldb.com/vuln/421581/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-111869 (third-party-advisory)
- vuldb.com/submit/1004923 (third-party-advisory)
- vuldb.com/submit/1005105 (third-party-advisory)
- github.com/makeplane/plane/issues/9913 (issue-tracking, exploit)
- github.com/makeplane/plane/ (product)
Frequently asked questions
- What is CVE-2026-111869?
- CVE-2026-111869 is a medium-severity vulnerability in Makeplane Plane, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2026-10-18.
- How severe is CVE-2026-111869?
- Medium severity. CVSS v3 base score is 5.3 out of 10.