CVE-2026-111645: MrDoc through 1.1.1 Missing Authorization via api/import_local_doc/ Endpoint

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-16 · updated 2026-10-19
Weakness: CWE-639

Description

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.

Affected products

zmister2016 MrDoc: through 1.1.1

References

https://github.com/zmister2016/MrDoc/blob/v1.1.1/app_doc/views_import.py#L165-L182
https://hackmd.io/@hieuPenguinnn/mrdoc-import-local-doc-api-missing-authz-cross-user-publish
https://www.vulncheck.com/advisories/mrdoc-through-1.1.1-missing-authorization-via-api-import-local-doc-endpoint
https://hackmd.io/@hieuPenguinnn/mrdoc-import-local-doc-api-missing-authz-cross-user-publish

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