{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-44767", "assignerOrgId": "e4686d1a-f260-4930-ac4c-2f5c992778dd", "state": "PUBLISHED", "assignerShortName": "sap", "dateReserved": "2026-05-07T18:39:44.147Z", "datePublished": "2026-07-14T00:22:05.306Z", "dateUpdated": "2026-07-14T06:48:31.541Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "e4686d1a-f260-4930-ac4c-2f5c992778dd", "shortName": "sap", "dateUpdated": "2026-07-14T06:48:31.541Z"}, "title": "Allowlist Bypass in setThemeRoot() Enables Cross-Origin CSS Injection", "problemTypes": [{"descriptions": [{"lang": "eng", "cweId": "CWE-79", "description": "CWE-79: Improper Neutralization of Input During Web Page Generation", "type": "CWE"}]}], "affected": [{"vendor": "SAP_SE", "product": "@ui5/webcomponents-base", "versions": [{"status": "affected", "version": "@ui5/webcomponents-base < 2.21.0"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "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", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>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 &lt;link rel=stylesheet&gt; element, even when no &lt;meta name=sap-allowed-theme-origins&gt; 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</p>"}]}], "references": [{"url": "https://github.com/UI5/webcomponents/security/advisories/GHSA-p8gx-753q-v89p"}, {"url": "https://url.sap/sapsecuritypatchday"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseSeverity": "MEDIUM", "baseScore": 6.1, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.2"}}}}

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