CVE-2026-50556

Katalog CVE

CVSS 6.1 · Medium EPSS 0,41%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada angular. Skor CVSS 3.1 6.1 (Medium) menurut NVD.

Deskripsi (NVD)

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, 21.2.16, 20.3.24, and 19.2.25, a Cross-Site Scripting (XSS) vulnerability exists in @angular/platform-server's DOM emulation dependency (domino) when serializing the content of <noscript> elements. When rendering dynamic text content inside a <noscript> element via template bindings (such as {{ value }} or [textContent]), the template engine expects the browser to render the content safely. Under Server-Side Rendering (SSR), domino is configured with scripting enabled, meaning <noscript> is treated as a raw-text element. However, domino's serializer completely omitted <noscript> from the list of raw-text elements requiring closing-tag escaping during DOM serialization. As a result, any occurrence of </noscript> in the bound dynamic text was never escaped under any circumstances. The unescaped closing tag was serialized directly into the output HTML (e.g. <noscript></noscript><script>alert(1)</script></noscript>). When parsed by a browser, it closes the <noscript> block early, allowing the injected <script> block to execute in the user's browser context, causing same-origin Cross-Site Scripting (XSS). This vulnerability is fixed in 22.0.0-rc.2, 21.2.16, 20.3.24, and 19.2.25.

Rincian

Terbit di NVD

22 Juni 2026

Terakhir diubah

15 Juli 2026

Status NVD

Analyzed

CVSS 3.1

6.1 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

EPSS (30 hari)

0,41% peluang dieksploitasi; lebih tinggi dari 33,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/angular/domino/pull/29 issue tracking · patch
• https://github.com/angular/angular/security/advisories/GHSA-gxx4-3xcv-f8qx advisory pihak ketiga
• https://access.redhat.com/security/cve/CVE-2026-50556 advisory pihak ketiga
• https://bugzilla.redhat.com/show_bug.cgi?id=2491459 advisory pihak ketiga
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-50556.json advisory pihak ketiga
• https://github.com/angular/angular/issues/68903 issue tracking