CVE-2026-40071— pyLoad WebUI JSON permission mismatch lets ADD/DELETE users invoke MODIFY-only actions
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I. Basic Information for CVE-2026-40071
Vulnerability Information
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Vulnerability Title
pyLoad WebUI JSON permission mismatch lets ADD/DELETE users invoke MODIFY-only actions
Source: NVD (National Vulnerability Database)
Vulnerability Description
pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev97, the /json/package_order, /json/link_order, and /json/abort_link WebUI JSON endpoints enforce weaker permissions than the core API methods they invoke. This allows authenticated low-privileged users to execute MODIFY operations that should be denied by pyLoad's own permission model. This vulnerability is fixed in 0.5.0b3.dev97.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
pyLoad 安全漏洞
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 0.5.0b3.dev97之前版本存在安全漏洞，该漏洞源于某些WebUI JSON端点权限较弱，可能导致经过身份验证的低权限用户执行本应被拒绝的MODIFY操作。
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
II. Public POCs for CVE-2026-40071
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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-2026-35592
pyLoad has an Incomplete Tar Path Traversal Fix in UnTar._sa - CVE-2026-35586
Authorization Bypass for SSL Certificate/Key Configuration D - CVE-2026-35464
pyLoad has an incomplete fix for CVE-2026-33509: unprotected
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-2026-35592
pyLoad has an Incomplete Tar Path Traversal Fix in UnTar._sa - CVE-2026-35586
Authorization Bypass for SSL Certificate/Key Configuration D - CVE-2026-35464
pyLoad has an incomplete fix for CVE-2026-33509: unprotected
Same weakness: CWE-863
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FreeScout IDOR Vulnerability: PERM_EDIT_USERS allows modifyi
V. Comments for CVE-2026-40071
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