CVSS 6.1 · Medium EPSS 0,32%
Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada angular. Skor CVSS 3.1 6.1 (Medium) menurut NVD.
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.1, 21.2.17, and 20.3.25, to optimize client-side bootstrap in Server-Side Rendered (SSR) environments, Angular supports Hydration via provideClientHydration(). During SSR, Angular serializes the application's runtime state (such as cached HttpClient responses) and outputs it into the HTML stream as a <script> tag with a predictable identifier. During client bootstrap, Angular recovers this state by looking up the element via document.getElementById('ng-state') and parsing its text content. Because the DOM element lookup for the state container is predictable and relies solely on the ID selector (ng-state), it is susceptible to DOM Clobbering. If the application binds untrusted user input or CMS content to element properties such as id (e.g., <div [id]="userInput"> or <a id="ng-state">) before the genuine <script> tag is parsed by the browser, the attacker-controlled element takes precedence in the DOM lookup. During hydration, when Angular calls document.getElementById('ng-state'), the browser returns the attacker's clobbered element. Angular then attempts to parse the text content or attributes of this clobbered element as JSON. This vulnerability is fixed in 22.0.1, 21.2.17, and 20.3.25.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| angular | angular | Semua versi hingga 19.2.25 |
| angular | angular | Versi 20.0.0 hingga sebelum 20.3.25 |
| angular | angular | Versi 21.0.0 hingga sebelum 21.2.17 |
| angular | angular | Versi 22.0.0 hingga sebelum 22.0.1 |