Angular up to 19.2.25 cross site scripting

Summaryinfo

A vulnerability classified as problematic was found in Angular up to 19.2.25. This impacts an unknown function. Such manipulation leads to cross site scripting. This vulnerability is uniquely identified as CVE-2026-54265. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Angular up to 19.2.25 and classified as problematic. Affected by this issue is an unknown function. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. CVE summarizes:

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.1, 21.2.17, and 20.3.25, an issue in the @angular/compiler package allows bypassing DOM property sanitization through the use of two-way property bindings. Specifically, when a native DOM property that requires sanitization (such as innerHTML, srcdoc, src, href, data, or sandbox) is bound using the two-way binding syntax (e.g., [(innerHTML)]="value" or bindon-innerHTML="value"), the Angular template compiler failed to apply the appropriate schema-derived sanitizer resolution to the TwoWayProperty operation. As a result, native two-way DOM bindings were emitted without the required sanitizer function, whereas equivalent one-way bindings would be properly sanitized. This flaw enables an attacker who can control the value of a two-way bound sensitive property to bypass Angular's built-in sanitization logic, potentially leading to client-side Cross-Site Scripting (XSS). This vulnerability is fixed in 22.0.1, 21.2.17, and 20.3.25.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-54265 since 06/12/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading to version 20.0.0-next.0 20.3.25, 21.0.0-next.0 21.2.17 or 22.0.0-next.0 22.0.1 eliminates this vulnerability.

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Productinfo

Type

• JavaScript Library

Name

• Angular

Version

• 19.2.0
• 19.2.1
• 19.2.2
• 19.2.3
• 19.2.4
• 19.2.5
• 19.2.6
• 19.2.7
• 19.2.8
• 19.2.9
• 19.2.10
• 19.2.11
• 19.2.12
• 19.2.13
• 19.2.14
• 19.2.15
• 19.2.16
• 19.2.17
• 19.2.18
• 19.2.19
• 19.2.20
• 19.2.21
• 19.2.22
• 19.2.23
• 19.2.24
• 19.2.25

Website

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

CPE 2.3info

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CPE 2.2info

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