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TI-2026-83819 Aliases CVE-2026-120427GHSA-3j38-ccjp-5wfv

Missing authorization in MrDoc get_doctemp exposes other users' templates

Priority MEDIUM 57CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

MrDoc through 1.1.1 from zmister2016 contains a missing authorization flaw in the get_doctemp view. An authenticated user can change the sequential doctemp_id POST parameter to read the private document templates of other users (CWE-639). An attacker with low privileges can retrieve the template content of every user on the instance over the network.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00251 16th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
zmister2016MrDocup to 1.1.1—No fix listedCNA
  • MrDoc Vendorzmister2016 Affected up to 1.1.1 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for MrDoc.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Timeline

  1. 2026-11-02 Threatist record created from CVE-2026-120427
  2. 2026-11-02 Alias added: GHSA-3j38-ccjp-5wfv
  3. 2026-11-06 CISA SSVC decision points changed
  4. 2026-11-06 Priority changed: LOW → MEDIUM

References

Patch 1

Other 3

  • TI-2026-75431 Missing authorization in MrDoc allows editing other users' documents CVSS 4.0MEDIUM 5.3
  • TI-2026-81167 Broken access control in MrDoc lets users alter other users' shares CVSS 4.0MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences