XSS in Selfbest
CVE-2025-63417
A Stored Cross-Site Scripting (XSS) vulnerability in the chat functionality of the SelfBest platform 2023.3 allows authenticated attackers to inject arbitrary web scripts or HTML via the chat message input field. This malicious content is stored and then executed in the context of other users' browsers when they view the malicious message, potentially leading to session hijacking, account takeover, or other client-side attacks.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (12.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 12.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Selfbest — versions 2023.3
Weakness classification (CWE)
References
- rohitchaudhary045.medium.com/cve-2025-63417-the-chatroom-compromise-stored-xss-… (Exploit, Third Party Advisory, Mitigation)
Frequently asked questions
- What is CVE-2025-63417?
- CVE-2025-63417 is a high-severity vulnerability in Selfbest, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2025-11-05.
- How severe is CVE-2025-63417?
- High severity. CVSS v3 base score is 7.2 out of 10.