CVE-2026-56845
Received Received - Intake

Unauthenticated Path Traversal in CustomSounds FileSystem Storage

Publication date: 2026-08-04

Last updated on: 2026-08-04

Assigner: HackerOne

Description
An unauthenticated path traversal (LFI) vulnerability exists under /custom-sounds/ when CustomSounds storage is configured to FileSystem. By including ../ sequences in the request path, an attacker can read arbitrary files outside the base directory.

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Meta Information

Published
2026-08-04
Last Modified
2026-08-04
Generated
2026-08-04
AI Q&A
2026-08-04
EPSS Evaluated
N/A
NVD
CVE-2026-56845
EUVD
EUVD-2026-52560

Affected Vendors & Products

Currently, no data is known.

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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.

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Executive Summary

This is a Local File Inclusion (LFI) vulnerability that allows unauthenticated attackers to read arbitrary files on the server by manipulating the request path with ../ sequences. It specifically affects the /custom-sounds/ endpoint when CustomSounds storage is set to FileSystem.

Detection Guidance

To detect this vulnerability, check if your system allows unauthenticated access to /custom-sounds/ with path traversal attempts. Use curl to test for LFI by sending requests with ../ sequences in the path, such as: curl http://<target>/custom-sounds/../../../../etc/passwd. Monitor server logs for unusual path traversal patterns or failed access attempts.

Impact Analysis

An attacker could exploit this to access sensitive files like configuration files, passwords, or other confidential data stored on the server. This could lead to further attacks, data breaches, or unauthorized system access.

Compliance Impact

This vulnerability could lead to unauthorized access to personal or sensitive data, violating GDPR (data protection) and HIPAA (health information privacy) requirements. Non-compliance may result in legal penalties, fines, or reputational damage.

Mitigation Strategies

Immediately restrict access to /custom-sounds/ to authenticated users only. Update the application to validate and sanitize all file paths to prevent traversal sequences. If using FileSystem storage, consider switching to a more secure storage method like a database. Apply patches or updates if available from the vendor.

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