Vulnerability in Docmost Wiki Software Allows Unauthorized Access to Restricted Attachments
CVE-2026-48073

4.3MEDIUM

Key Information:

Vendor

Docmost

Status
Docmost
Vendor
CVE Published:
24 September 2026

What is CVE-2026-48073?

In Docmost versions 0.70.0 to 0.80.1, a low-privileged authenticated user can exploit the system by embedding a forged attachmentId linked to a restricted page. This vulnerability allows the user to export an attacker-controlled page with the 'includeAttachments=true' parameter. This action compels the export flow to retrieve the restricted attachment from storage, which should otherwise be protected, and includes it in the resulting ZIP archive despite direct access being denied. This flaw is addressed in version 0.80.1.

Affected Version(s)

docmost >= 0.70.0, < 0.80.1

References

https://github.com/docmost/docmost/security/advisories/GH...
x_refsource_CONFIRM
https://github.com/docmost/docmost/commit/a573acedd0317f3...
x_refsource_MISC
https://github.com/docmost/docmost/releases/tag/v0.80.1
x_refsource_MISC

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.