{"id":"GHSA-692r-grfm-v8x7","revision":null,"records":[{"revision":"723b995f34e2404e9159201e54d7ecb1","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-52725","aliases":[],"title":"Angular Template and Dynamic Component Namespace Bypass leading to Cross-Site Scripting (XSS)","description":"Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23, an issue in the @angular/core package allows bypassing script-execution restrictions during dynamic component creation. Specifically, the dynamic component instantiation mechanism (createComponent) failed to reject mounting components directly onto a <script> or namespaced script element (such as <svg:script>). This enabled the initialization of custom components on a tag that executes scripts, allowing attackers to hijack or inject script-executing hosts. This flaw enables an attacker who can control the host element or selector parameter passed to createComponent to initialize or mount an Angular component directly onto a <script> tag, leading to execution of untrusted code or client-side Cross-Site Scripting (XSS). 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This flaw enables an attacker who can control the host element or selector parameter passed to createComponent to initialize or mount an Angular component directly onto a <script> tag, leading to execution of untrusted code or client-side Cross-Site Scripting (XSS). 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This enabled the initialization of custom components on a tag that executes scripts, allowing attackers to hijack or inject script-executing hosts.\n\nThis flaw enables an attacker who can control the host element or selector parameter passed to `createComponent` to initialize or mount an Angular component directly onto a `<script>` tag, leading to execution of untrusted code or client-side Cross-Site Scripting (XSS).\n\n### Impact\nAny Angular application that registers dynamic components based on user-supplied parameters (like selectors or host elements) is vulnerable to this security bypass.\n\nOnce exploited, this allows a malicious actor to mount a dynamic component on a script tag, bypassing core dynamic component creation safeguards to execute arbitrary JavaScript within the target user's browser context. 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