Security readout for executives and security teams
Plain-English summary
Docmost versions before 0.24.0 can let a low-privileged user write files to unintended locations through the ZIP import feature. This is a ZipSlip path traversal issue. The main business risk is service disruption and unauthorized modification of server-side files, not data theft based on the published CVSS impact.
Executive priority
Treat this as a timely patching priority for any Docmost deployment. The issue can affect service availability and file integrity, but current provided evidence does not show active exploitation. Prioritize internet-accessible or broadly shared Docmost instances first.
Technical view
CVE-2026-22249 affects Docmost 0.21.0 through versions before 0.24.0. The ZIP import utility lacked filename validation in apps/server/src/integrations/import/utils/file.utils.ts, allowing arbitrary file write via path traversal. CVSS 3.1 is 7.1: network exploitable, low complexity, low privileges required, no user interaction, integrity low, availability high.
Likely exposure
Organizations running Docmost below 0.24.0 are potentially exposed, especially where users with low privileges can access ZIP import functionality. Environments not using Docmost, or already on 0.24.0 or later, are not indicated as affected by the provided sources.
Exploitation context
The provided sources do not show active exploitation, and the CVE is not listed as KEV in the supplied data. Exploitation requires low privileges and access to the affected import feature. Public sources identify the weakness and fix, but do not provide evidence of real-world attacks.
Researcher notes
The key evidence is the GitHub advisory, pull request, and commit fixing filename validation for ZIP import. The CVSS vector indicates PR:L and UI:N. Avoid assuming remote code execution unless vendor sources later confirm impact beyond arbitrary file write.
Mitigation direction
- Upgrade Docmost to version 0.24.0 or later.
- Review the GitHub security advisory for vendor guidance.
- Restrict access to ZIP import functionality until upgraded.
- Back up Docmost data before applying updates.
Validation and detection
- Inventory all Docmost deployments and record versions.
- Confirm affected instances are below 0.24.0.
- Verify upgraded systems report version 0.24.0 or later.
- Review recent ZIP import activity for unusual timing or users.
- Check application directories for unexpected file changes.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-22249 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H2.84.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.1HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/docmost/docmost/security/advisories/GHSA-54pm-hqxm-54wgCVE reference · x_refsource_CONFIRM
- https://github.com/docmost/docmost/pull/1753CVE reference · x_refsource_MISC
- https://github.com/docmost/docmost/commit/c3b350d943108552e20654580005cd6f6c78ab05CVE reference · x_refsource_MISC
- https://github.com/docmost/docmost/releases/tag/v0.24.0CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.