Angular up to 18.2.14 cross site scripting

Summaryinfo

A vulnerability classified as problematic was found in Angular up to 18.2.14. Affected by this issue is some unknown functionality. Executing a manipulation can lead to cross site scripting. This vulnerability is handled as CVE-2026-52725. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic was found in Angular up to 18.2.14. This vulnerability affects an unknown function. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. CVE summarizes:

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 or namespaced script element (such as ). 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 tag, leading to execution of untrusted code or client-side Cross-Site Scripting (XSS). This vulnerability is fixed in 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-52725 since 06/08/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 19.0.0-next.0 19.2.22, 20.0.0-next.0 20.3.22, 21.0.0-next.0 21.2.15 or 22.0.0-next.0 22.0.0-rc.2 eliminates this vulnerability.

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Productinfo

Type

• JavaScript Library

Name

• Angular

Version

• 18.2.0
• 18.2.1
• 18.2.2
• 18.2.3
• 18.2.4
• 18.2.5
• 18.2.6
• 18.2.7
• 18.2.8
• 18.2.9
• 18.2.10
• 18.2.11
• 18.2.12
• 18.2.13
• 18.2.14

Website

• Product: https://github.com/angular/angular/

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