漏洞信息
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Vulnerability Title
Allowlist Bypass in setThemeRoot() Enables Cross-Origin CSS Injection
Vulnerability Description
setThemeRoot() failed to enforce the sap-allowed-theme-origins allowlist. An attacker-controlled absolute cross-origin URL could be stored and used directly to construct a <link rel=stylesheet> element, even when no <meta name=sap-allowed-theme-origins> tag was present in the document. The same bypass was reachable via the ?sap-themeRoot URL parameter.Exploitation requires attacker-influenced input (e.g., a URL query parameter, tenant configuration, or user-supplied setting) to reach setThemeRoot(). A successful exploit allows an attacker to inject arbitrary CSS into the victim page, enabling:- UI redressing and clickjacking- Phishing overlays- Visual defacement- Limited data exfiltration via CSS attribute selectors targeting predictable DOM content
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Vulnerability Title
SAP ui5 跨站脚本漏洞
Vulnerability Description
SAP ui5是德国SAP公司的一套Web前端UI开发框架。 SAP ui5 2.21.0之前版本存在跨站脚本漏洞,该漏洞源于setThemeRoot()未能执行sap-allowed-theme-origins白名单,导致攻击者可通过存储的跨源URL或?sap-themeRoot参数构造<link rel=stylesheet>元素,注入任意CSS,从而进行UI重写和点击劫持、钓鱼覆盖、视觉篡改以及通过CSS属性选择器针对可预测DOM内容进行有限的数据泄露。
CVSS Information
N/A
Vulnerability Type
N/A