🛡️ CVE-2025-63416
🔴 CVSS 9.1 — Critical ⚠️ Exploit Public CWE-79 NVD
9.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

** exclusively-hosted-service ** A Stored Cross-Site Scripting (XSS) vulnerability in the chat functionality of the SelfBest platform 2023.3 allows authenticated low-privileged attackers to execute arbitrary JavaScript in the context of other users' sessions. This can be exploited to access administrative data and functions, leading to privilege escalation and full compromise of sensitive user data, as demonstrated by the ability to fetch and exfiltrate the contents of the /admin/users endpoint.

Details

Severity CRITICAL
CVSS Score 9.1
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE CWE-79
Public Exploit ⚠️ Yes
Source NVD
Published 2025-11-05
Updated 2026-06-02
Modified 2025-11-07
Fix URL N/A

Affected Packages

Software From version Fixed in
selfbest — —

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