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I. Basic Information for CVE-2026-28413
Vulnerability Information

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Vulnerability Title
Products.isurlinportal: Possible open redirect when using more than 2 forward slashes
Source: NVD (National Vulnerability Database)
Vulnerability Description
Products.isurlinportal is a replacement for isURLInPortal method in Plone. Prior to versions 2.1.0, 3.1.0, and 4.0.0, a url /login?came_from=////evil.example may redirect to an external website after login. This issue has been patched in versions 2.1.0, 3.1.0, and 4.0.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: NVD (National Vulnerability Database)
Vulnerability Title
isURLInPortal 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
isURLInPortal是Plone开源的一个用于Plone的URL安全检查补丁。 isURLInPortal 2.1.0之前版本、3.1.0之前版本和4.0.0之前版本存在输入验证错误漏洞,该漏洞源于登录后可能重定向到外部网站。
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
VendorProductAffected VersionsCPESubscribe
ploneProducts.isurlinportal < 4.0.0 -
II. Public POCs for CVE-2026-28413
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III. Intelligence Information for CVE-2026-28413
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IV. Related Vulnerabilities
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