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TI-2026-35514 Aliases CVE-2026-48073

Docmost: Page export can include restricted same-space attachments through forged attachmentId

Priority LOW 19CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00193 9th percentileScored 2026-11-07
Fix Fixed docmost (docmost): 0.80.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
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
docmostdocmost0.70.0 to before 0.80.10.80.1Patch availableCNA
  • docmost Vendordocmost Affected 0.70.0 to before 0.80.1 Fixed in 0.80.1 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:docmost:docmost:*:*:*:*:*:*:*:*——docmost
  • cpe:2.3:a:docmost:docmost:*:*:*:*:*:*:*:* Versions — — ·docmost

Remediation

  • Fix · CNA docmost (docmost) Fixed in 0.80.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-48073

References

Other 3

  • TI-2026-17859 Docmost affected by an Arbitrary File Write via Zip Import Feature (ZipSlip) CVSS 3.1CRITICAL 9.8
  • TI-2026-19373 Docmost Affected by Stored XSS in Public Share Page CVSS 3.1HIGH 7.3
  • TI-2025-35043 Cross Site Scripting vulnerability in docmost v.0.21.0 and before allows an attacker to execute arbitrary code CVSS 3.1MEDIUM 6.1
  • TI-2026-35511 Docmost: Avatar URL path traversal in avatar cleanup leads to arbitrary local file deletion CVSS 3.1HIGH 7.1
  • TI-2026-35513 Docmost: Public image fileName path traversal leads to unauthorized local file read CVSS 3.1MEDIUM 5.3
  • TI-2026-46906 Docmost: Unbounded ZIP decompression (zip-bomb) in page import allows denial of service CVSS 3.1MEDIUM 6.5
See all 14 →

Sources

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