CVE-2025-57231

Deferred Deferred - Pending Action

Path Traversal in Docmost via Avatar Attachments

Publication date: 2026-09-10

Last updated on: 2026-09-22

Assigner: MITRE

Description

Path Traversal in avatar attachments in Docmost v0.21.0 allows an unauthenticated malicious actor to disclose local files via a POST Request in a public url.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-10

Last Modified

2026-09-22

Generated

2026-10-01

AI Q&A

2026-09-11

EPSS Evaluated

2026-09-29

NVD

CVE-2025-57231

EUVD

EUVD-2025-210887

Affected Vendors & Products

Vendor	Product	Version / Range
docmost	docmost	0.21.0

Helpful Resources

Exploitability

CWE

KEV

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

Executive Summary

Path Traversal in avatar attachments in Docmost v0.21.0 allows an unauthenticated attacker to access local files on the server by sending a specially crafted POST request to a public URL.

Detection Guidance

To detect this vulnerability, monitor network traffic for POST requests to avatar attachment endpoints in Docmost v0.21.0. Check for unusual file access patterns or requests containing path traversal sequences like '../' in URLs.

Impact Analysis

This vulnerability could allow attackers to read sensitive files on the server, potentially exposing confidential data such as configuration files, user credentials, or other sensitive information stored on the system.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive files, potentially exposing personal data. This may violate GDPR's data protection requirements and HIPAA's safeguards for protected health information if such data is compromised.

Mitigation Strategies

Immediately upgrade Docmost to a patched version if available. If no patch exists, restrict access to the avatar attachment endpoint and disable public URL functionality until a fix is applied.

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