CVE-2026-40332— Masa CMS open redirect via improper handling of scheme-relative URLs

Masa CMS open redirect via improper handling of scheme-relative URLs

Masa CMS is affected by an Open Redirect vulnerability due to improper handling of scheme-relative URLs. The application incorrectly interprets paths beginning with double slashes (//) as internal paths, failing to validate the redirect target before processing. The application treats these values as internal paths and processes them without confirming that the redirect target remains on the local site. An attacker can craft a URL on the trusted Masa CMS domain that redirects a victim to an external attacker-controlled site. This can be used for phishing and, in some authentication flows, may expose tokens or other sensitive data to the external site. This issue has been fixed in versions 7.2.10, 7.3.15, 7.4.10, and 7.5.3. As a workaround, reject or rewrite redirect parameters that begin with // and consider disabling forceDirectoryStructure if compatible with the deployment.

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指向未可信站点的URL重定向(开放重定向)

Masa CMS 输入验证错误漏洞

Masa CMS是Masa CMS组织的一个数字体验平台。 Masa CMS存在输入验证错误漏洞，该漏洞源于对方案相对URL处理不当，可能导致攻击者通过以双斜杠开头的URL将受害者重定向到外部攻击者控制的站点。

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