CVE-2025-27802

Katalog CVE

CVSS 4.8 · Medium EPSS 0,34%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'). Skor CVSS 3.1 4.8 (Medium) menurut CNA.

Deskripsi (NVD)

The Episerver Content Management System (CMS) by Optimizely was affected by multiple Stored Cross-Site Scripting (XSS) vulnerabilities. This allowed an authenticated attacker to execute malicious JavaScript code in the victim's browser. RTE properties (text fields), which could be used in the "Edit" section of the CMS, allowed the input of arbitrary text. It was possible to input malicious JavaScript code in these properties that would be executed if a user visits the previewed page. Attackers needed at least the role "WebEditor" in order to exploit this issue. Affected products: Version 11.X: EPiServer.CMS.Core (<11.21.4) with EPiServer.CMS.UI (<11.37.5), Version 12.X: EPiServer.CMS.Core (<12.22.1) with EPiServer.CMS.UI (<11.37.3)

Rincian

Terbit di NVD

28 Juli 2025

Terakhir diubah

17 Juni 2026

Status NVD

Deferred

CVSS 3.1

4.8 (Medium), sumber CNA
CVSS:3.1/AV:N/AC:L/PR:H/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)

0,34% peluang dieksploitasi; lebih tinggi dari 25,3% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://api.nuget.optimizely.com/packages/episerver.cms.core/11.21.4#
• https://api.nuget.optimizely.com/packages/episerver.cms.core/12.22.1#
• https://r.sec-consult.com/optimizely
• http://seclists.org/fulldisclosure/2025/Aug/18