Docmost: Page export can include restricted same-space attachments through forged attachmentId (CVE-2026-48073) | HOL Guard CVE

Medium · CVSS 4.3CVE-2026-48073

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

Answer in brief

CVE-2026-48073 records a Medium severity (CVSS 4.3) vulnerability in Docmost: Page export can include restricted same-space attachments through forged attachmentId. The current sources do not mark it as known exploited. The current feed maps docmost/docmost (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 24, 2026Updated Sep 24, 2026Source checked Sep 25, 2026First seen by HOL Sep 25, 2026Material review Sep 24, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 4.3
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 4.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps docmost/docmost (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
docmost/docmostgeneric	>=0.70.0 <0.80.1	0.80.1

Recommended response

Check inventory. Check lockfiles and deployed manifests for docmost/docmost.
Review the reported fix. Update docmost/docmost to 0.80.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 25, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.