IAHispano Applio up to 3.2.8-bugfix core.py output_tts_path path traversal

Summaryinfo

A vulnerability identified as critical has been detected in IAHispano Applio up to 3.2.8-bugfix. This vulnerability affects the function output_tts_path of the file core.py. This manipulation causes path traversal. This vulnerability is tracked as CVE-2025-27786. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in IAHispano Applio up to 3.2.8-bugfix and classified as critical. Affected by this vulnerability is the function output_tts_path of the file core.py. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity, and availability. The summary by CVE is:

Applio is a voice conversion tool. Versions 3.2.8-bugfix and prior are vulnerable to arbitrary file removal in core.py. `output_tts_path` in tts.py takes arbitrary user input and passes it to `run_tts_script` function in core.py, which checks if the path in `output_tts_path` exists, and if yes, removes that path, which leads to arbitrary file removal. As of time of publication, no known patches are available.

It is possible to read the advisory at securitylab.github.com. This vulnerability is known as CVE-2025-27786 since 03/06/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/01/2025). The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• IAHispano

Name

• Applio

Version

• 3.2.8-bugfix

CPE 2.3info

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• 🔍

CPE 2.2info

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• 🔍

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