CVE-2026-48073

4.3 mediumEPSS 0.2%

Medium (4.3). EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

4.3 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 8% of CVEs (scores of 2026-10-31)
CWE: CWE-639
Published: 2026-09-24
Modified: 2026-09-24
Record from: the NVD, synced 2026-10-19

References

https://github.com/docmost/docmost/commit/a573acedd0317f3472cb0f8b95f6aa15315312e5
https://github.com/docmost/docmost/releases/tag/v0.80.1
https://github.com/docmost/docmost/security/advisories/GHSA-rxm9-xp9h-4c84

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