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CVE-2025-27777— Applio allows SSRF and file write in model_download.py

Quick assessment

Affected
IAHispano Applio
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Applio是西班牙AI Hispano的一款开源 AI 语音转换工具。 Applio 3.2.7及之前版本存在代码问题漏洞，该漏洞源于model_download.py中的服务端请求伪造问题，可能导致攻击者代表Applio服务器发送请求。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.41% · P34
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I. Basic Information for CVE-2025-27777

Vulnerability Information
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Vulnerability Title
Applio allows SSRF and file write in model_download.py
Source: CVE Program / CVE List V5
Vulnerability Description
Applio is a voice conversion tool. Versions 3.2.7 and prior are vulnerable to server-side request forgery (SSRF) in `model_download.py` (line 195 in 3.2.7). The blind SSRF allows for sending requests on behalf of Applio server and can be leveraged to probe for other vulnerabilities on the server itself or on other back-end systems on the internal network, that the Applio server can reach. The blind SSRF can also be coupled with a arbitrary file read (e.g., CVE-2025-27784) to read files from hosts on the internal network, that the Applio server can reach, which would make it a full SSRF. As of time of publication, no known patches are available.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Applio 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Applio是西班牙AI Hispano的一款开源 AI 语音转换工具。 Applio 3.2.7及之前版本存在代码问题漏洞，该漏洞源于model_download.py中的服务端请求伪造问题，可能导致攻击者代表Applio服务器发送请求。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
IAHispano Applio <= 3.2.7 -

II. Public POCs for CVE-2025-27777

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III. Intelligence Information for CVE-2025-27777

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Patches & Fixes for CVE-2025-27777 (2)

Vendor Advisories for CVE-2025-27777 (1)

News Coverage for CVE-2025-27777 (1)

Same Patch Batch · IAHispano · 2025-03-19 · 14 CVEs total

CVE-2025-27780 Applio allows unsafe deserialization in model_information.py
CVE-2025-27781 Applio allows unsafe deserialization in inference.py
CVE-2025-27785 Applio allows arbitrary file read in train.py export_index function
CVE-2025-27774 Applio allows SSRF and file write in model_download.py
CVE-2025-27775 Applio allows SSRF and file write in model_download.py
CVE-2025-27786 Applio allows arbitrary file removal in core.py
CVE-2025-27783 Applio allows arbitrary file write in train.py
CVE-2025-27787 Applio allows a DoS in restart.py
CVE-2025-27779 Applio allows unsafe deserialization in model_blender.py
CVE-2025-27778 Applio allows unsafe deserialization in infer.py
CVE-2025-27776 Applio allows SSRF and file write in model_download.py
CVE-2025-27782 Applio allows arbitrary file write in inference.py
CVE-2025-27784 Applio allows arbitrary file read in train.py export_pth function

IV. Related Vulnerabilities

Same product: Applio
Same vendor: IAHispano
Same weakness: CWE-918

V. Comments for CVE-2025-27777

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