CVE-2025-53890— pyLoad vulnerable to remote code execution through js2py onCaptchaResult
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I. Basic Information for CVE-2025-53890
Vulnerability Information
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Vulnerability Title
pyLoad vulnerable to remote code execution through js2py onCaptchaResult
Source: NVD (National Vulnerability Database)
Vulnerability Description
pyload is an open-source Download Manager written in pure Python. An unsafe JavaScript evaluation vulnerability in pyLoad’s CAPTCHA processing code allows unauthenticated remote attackers to execute arbitrary code in the client browser and potentially the backend server. Exploitation requires no user interaction or authentication and can result in session hijacking, credential theft, and full system remote code execution. Commit 909e5c97885237530d1264cfceb5555870eb9546, the patch for the issue, is included in version 0.5.0b3.dev89.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
pyLoad 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
pyLoad是pyLoad开源的一个用 Python 编写的免费开源下载管理器。 pyLoad存在代码注入漏洞，该漏洞源于不安全的JavaScript评估，可能导致远程代码执行。
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)
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Affected Products
II. Public POCs for CVE-2025-53890
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IV. Related Vulnerabilities
Same product: pyload
- CVE-2026-41133
pyLoad has Stale Session Privilege After Role/Permission Cha - CVE-2026-40594
pyLoad: Session Cookie Security Downgrade via Untrusted X-Fo - CVE-2026-40071
pyLoad WebUI JSON permission mismatch lets ADD/DELETE users - CVE-2026-35592
pyLoad has an Incomplete Tar Path Traversal Fix in UnTar._sa - CVE-2026-35586
Authorization Bypass for SSL Certificate/Key Configuration D
Same vendor: pyload
- CVE-2026-41133
pyLoad has Stale Session Privilege After Role/Permission Cha - CVE-2026-40594
pyLoad: Session Cookie Security Downgrade via Untrusted X-Fo - CVE-2026-40071
pyLoad WebUI JSON permission mismatch lets ADD/DELETE users - CVE-2026-35592
pyLoad has an Incomplete Tar Path Traversal Fix in UnTar._sa - CVE-2026-35586
Authorization Bypass for SSL Certificate/Key Configuration D
Same weakness: CWE-94
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Evolution CMS 3.1.6 Authenticated Remote Code Execution via - CVE-2021-47938
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Sentry 8.2.0 Remote Code Execution via Pickle Deserializatio - CVE-2022-50944
Aero CMS 0.0.1 PHP Code Injection via posts.php - CVE-2026-8211
codelibs Fess JSP File AdminDesignAction.java update code in
V. Comments for CVE-2025-53890
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