CVE-2025-63416

CRITICAL EPSS 24.4%
Published Nov 5, 20257mo ago · Modified Jun 17, 20262w ago
9.1 CVSS 3.1
Critical
Find Similar
Published Nov 5, 2025 7mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
9.1
Exploitability
3.9
Impact
5.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
24.4% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 1

VendorProductVersionRange
selfbestselfbest2023.3any

References 2

  • rohitchaudhary045.medium.com https://rohitchaudhary045.medium.com/cve-2025-63416-the-admin-panel-heist-stored-xss-to-privilege-escalation-b4c69d8487f1
    ExploitMitigationThird Party Advisory
  • self.best https://self.best
    Product

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.