Docmost is open-source collaborative wiki and documentation software. From 0.70.0 until 0.80.1, a low-privileged authenticated user who can edit an exportable page can embed a forged attachmentId that belongs to a restricted page in the same space. Exporting the attacker-controlled page with includeAttachments=true causes the page export flow to read the restricted attachment from storage and include it in the returned ZIP archive even though direct file download denies access. This issue is fixed in version 0.80.1.
Advisories

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Fixes

Solution

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Workaround

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History

Thu, 24 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 24 Sep 2026 18:45:00 +0000

Type Values Removed Values Added
Description Docmost is open-source collaborative wiki and documentation software. From 0.70.0 until 0.80.1, a low-privileged authenticated user who can edit an exportable page can embed a forged attachmentId that belongs to a restricted page in the same space. Exporting the attacker-controlled page with includeAttachments=true causes the page export flow to read the restricted attachment from storage and include it in the returned ZIP archive even though direct file download denies access. This issue is fixed in version 0.80.1.
Title Docmost: Page export can include restricted same-space attachments through forged attachmentId
Weaknesses CWE-639
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-09-24T19:23:23.428Z

Reserved: 2026-05-20T18:25:25.708Z

Link: CVE-2026-48073

cve-icon Vulnrichment

Updated: 2026-09-24T19:23:18.727Z

cve-icon NVD

Status : Deferred

Published: 2026-09-24T19:17:13.767

Modified: 2026-09-24T20:17:29.000

Link: CVE-2026-48073

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses