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2 vulnerabilities found for @ui5/webcomponents-base by SAP_SE
CVE-2026-44767 (GCVE-0-2026-44767)
Vulnerability from nvd – Published: 2026-07-14 00:22 – Updated: 2026-07-14 00:22
VLAI
EPSS
VEX
Title
Allowlist Bypass in setThemeRoot() Enables Cross-Origin CSS Injection
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
Severity
6.1 (Medium)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SAP_SE | @ui5/webcomponents-base |
Affected:
@ui5/webcomponents-base < 2.21.0
|
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "@ui5/webcomponents-base",
"vendor": "SAP_SE",
"versions": [
{
"status": "affected",
"version": "@ui5/webcomponents-base \u003c 2.21.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003esetThemeRoot() 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 \u0026lt;link rel=stylesheet\u0026gt; element, even when no \u0026lt;meta name=sap-allowed-theme-origins\u0026gt; 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\u003c/p\u003e"
}
],
"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 \u003clink rel=stylesheet\u003e element, even when no \u003cmeta name=sap-allowed-theme-origins\u003e 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"
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-306",
"description": "CWE-306: Missing Authentication for Critical Function",
"lang": "eng",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-14T00:22:05.306Z",
"orgId": "e4686d1a-f260-4930-ac4c-2f5c992778dd",
"shortName": "sap"
},
"references": [
{
"url": "https://github.com/UI5/webcomponents/security/advisories/GHSA-p8gx-753q-v89p"
},
{
"url": "https://url.sap/sapsecuritypatchday"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Allowlist Bypass in setThemeRoot() Enables Cross-Origin CSS Injection",
"x_generator": {
"engine": "Vulnogram 1.0.2"
}
}
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"cveMetadata": {
"assignerOrgId": "e4686d1a-f260-4930-ac4c-2f5c992778dd",
"assignerShortName": "sap",
"cveId": "CVE-2026-44767",
"datePublished": "2026-07-14T00:22:05.306Z",
"dateReserved": "2026-05-07T18:39:44.147Z",
"dateUpdated": "2026-07-14T00:22:05.306Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
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CVE-2026-44767 (GCVE-0-2026-44767)
Vulnerability from cvelistv5 – Published: 2026-07-14 00:22 – Updated: 2026-07-14 00:22
VLAI
EPSS
VEX
Title
Allowlist Bypass in setThemeRoot() Enables Cross-Origin CSS Injection
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
Severity
6.1 (Medium)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SAP_SE | @ui5/webcomponents-base |
Affected:
@ui5/webcomponents-base < 2.21.0
|
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "@ui5/webcomponents-base",
"vendor": "SAP_SE",
"versions": [
{
"status": "affected",
"version": "@ui5/webcomponents-base \u003c 2.21.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003esetThemeRoot() 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 \u0026lt;link rel=stylesheet\u0026gt; element, even when no \u0026lt;meta name=sap-allowed-theme-origins\u0026gt; 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\u003c/p\u003e"
}
],
"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 \u003clink rel=stylesheet\u003e element, even when no \u003cmeta name=sap-allowed-theme-origins\u003e 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"
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-306",
"description": "CWE-306: Missing Authentication for Critical Function",
"lang": "eng",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-14T00:22:05.306Z",
"orgId": "e4686d1a-f260-4930-ac4c-2f5c992778dd",
"shortName": "sap"
},
"references": [
{
"url": "https://github.com/UI5/webcomponents/security/advisories/GHSA-p8gx-753q-v89p"
},
{
"url": "https://url.sap/sapsecuritypatchday"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Allowlist Bypass in setThemeRoot() Enables Cross-Origin CSS Injection",
"x_generator": {
"engine": "Vulnogram 1.0.2"
}
}
},
"cveMetadata": {
"assignerOrgId": "e4686d1a-f260-4930-ac4c-2f5c992778dd",
"assignerShortName": "sap",
"cveId": "CVE-2026-44767",
"datePublished": "2026-07-14T00:22:05.306Z",
"dateReserved": "2026-05-07T18:39:44.147Z",
"dateUpdated": "2026-07-14T00:22:05.306Z",
"state": "PUBLISHED"
},
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