Auth bypass in Zmister2016 Mrdoc
CVE-2026-111645
MrDoc through 1.1.1 contains a missing object-level authorization vulnerability in the ImportLocalDoc API that allows authenticated users to modify other users' documents and projects. Attackers can send PUT requests with arbitrary sort_data document ids to publish private drafts and reparent documents, or POST with arbitrary top_doc ids to inject documents.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/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
Weakness classification (CWE)
References
- hackmd.io/@hieuPenguinnn/mrdoc-import-local-doc-api-missing-authz-cross-user-pu… (third-party-advisory)
- github.com/zmister2016/MrDoc/blob/v1.1.1/app_doc/views_import.py (technical-description)
- www.vulncheck.com/advisories/mrdoc-through-1.1.1-missing-authorization-via-api-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111645?
- CVE-2026-111645 is a medium-severity vulnerability in Zmister2016 Mrdoc, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.4/10. Published 2026-10-16.
- How severe is CVE-2026-111645?
- Medium severity. CVSS v3 base score is 5.4 out of 10.