CVE-2025-27783: Applio allows arbitrary file write in train.py

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-03-19 · updated 2026-06-17
Weakness: CWE-22

Description

Applio is a voice conversion tool. Versions 3.2.8-bugfix and prior are vulnerable to arbitrary file write in train.py. This issue may lead to writing arbitrary files on the Applio server. It can also be used in conjunction with an unsafe deserialization to achieve remote code execution. As of time of publication, no known patches are available.

Affected products

IAHispano Applio: through 3.2.8-bugfix

References

https://github.com/IAHispano/Applio/blob/29b4a00e4be209f9aac51cd9ccffcc632dfb2973/tabs/train/train.py#L212-L225
https://github.com/IAHispano/Applio/blob/29b4a00e4be209f9aac51cd9ccffcc632dfb2973/tabs/train/train.py#L484-L491
https://github.com/IAHispano/Applio/blob/d7d685fefd0c58e29e1d84d668613056791544a7/tabs/inference/inference.py#L295
https://securitylab.github.com/advisories/GHSL-2024-341_GHSL-2024-353_Applio/

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