CVE-2026-44767 SAP_SE CVE debrief

Who should care

Users of Unknown Vendor products and administrators of systems utilizing UI5 web components should review their exposure to CVE-2026-44767. They should assess the potential impact on user interface security and prioritize patching or mitigation efforts accordingly. Additionally, security teams and vulnerability management teams should be aware of the potential risks and monitor for suspicious activity related to UI5 web components.

Technical summary

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.

Defensive priority

Medium priority due to the CVSS score of 6.1 and potential impact on user interface security.

Recommended defensive actions

• Review and update the configuration of the sap-allowed-theme-origins allowlist
• Implement input validation and sanitization for the ?sap-themeRoot URL parameter
• Monitor for suspicious activity related to UI5 web components
• Apply patches or updates provided by the vendor
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record was published on 2026-07-14T01:16:18.140Z and has not been modified since then. The NVD entry is currently 6.1 MEDIUM. Limited information is available about the affected products and versions. The vulnerability affects the setThemeRoot() function in UI5 web components. The exploitation requires attacker-influenced input, and a successful exploit allows an attacker to inject arbitrary CSS into the victim page. The debrief and recommended actions provide further context for defenders to assess and mitigate the vulnerability.

Official resources