CVE 5.3 MEDIUM

Angular Template and Dynamic Component Namespace Bypass leading to Cross-Site Scripting (XSS)_CVE-2026-52725

5.3 / 10
MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

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). This vulnerability is fixed in 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23.

Basic Information

ID CVE-2026-52725
Source GitHub_M
Published Jun 22, 2026 at 15:18

Affected Product

Vendor angular
Product angular
Version >= 22.0.0-next.0 < 22.0.0-rc.2
Affected Versions angular angular >= 22.0.0-next.0 < 22.0.0-rc.2
angular angular >= 21.0.0-next.0 < 21.2.15
angular angular >= 20.0.0-next.0 < 20.3.22
angular angular >= 19.0.0-next.0 < 19.2.22
angular angular <= 18.2.14

CWE Classification

References

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