CVE-2026-48072
Deferred Deferred - Pending Action

BaseFortify

Publication date: 2026-09-24

Last updated on: 2026-09-24

Assigner: GitHub, Inc.

Description
Docmost is open-source collaborative wiki and documentation software. Prior to 0.80.1, the public avatar and logo image endpoint accepts attacker-controlled fileName path segments and resolves them against local storage without confinement to the intended image directory. An unauthenticated attacker can traverse outside the avatar or logo directory and read local storage objects whose final basename satisfies the route's UUID check. This issue is fixed in version 0.80.1.

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Meta Information

Published
2026-09-24
Last Modified
2026-09-24
Generated
2026-09-25
AI Q&A
2026-09-24
EPSS Evaluated
N/A
NVD
CVE-2026-48072
EUVD
EUVD-2026-86389

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

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Executive Summary

Docmost before 0.80.1 has a vulnerability where the public avatar and logo image endpoints accept attacker-controlled file paths. This allows unauthenticated attackers to traverse outside the intended image directory and read local storage files if their names meet a UUID check.

Detection Guidance

To detect this vulnerability, check if your Docmost instance is running version 0.80.0 or earlier. Inspect network traffic for requests to avatar or logo endpoints with path traversal sequences like '../' or percent-encoded equivalents such as '..%2F'. Review server logs for unauthorized file access attempts outside the intended directories.

Impact Analysis

An attacker could access sensitive files stored on the server, including configuration files or other local storage objects, potentially leading to information disclosure or further exploitation.

Compliance Impact

This vulnerability could lead to unauthorized access to personal or sensitive data, violating GDPR and HIPAA compliance requirements for data protection and confidentiality.

Mitigation Strategies

Upgrade Docmost to version 0.80.1 or later to address the path traversal vulnerability in the avatar and logo endpoints.

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