** 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.
History

Thu, 06 Nov 2025 10:15:00 +0000

Type Values Removed Values Added
First Time appeared Selfbest
Selfbest selfbest
Vendors & Products Selfbest
Selfbest selfbest

Wed, 05 Nov 2025 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-79
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 05 Nov 2025 18:45:00 +0000

Type Values Removed Values Added
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.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2025-11-05T00:00:00.000Z

Updated: 2025-11-05T19:08:09.280Z

Reserved: 2025-10-27T00:00:00.000Z

Link: CVE-2025-63416

cve-icon Vulnrichment

Updated: 2025-11-05T19:07:10.375Z

cve-icon NVD

Status : Received

Published: 2025-11-05T19:16:02.677

Modified: 2025-11-05T19:16:02.677

Link: CVE-2025-63416

cve-icon Redhat

No data.