XSS in Intermesh Group-Office
CVE-2025-48366
Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.119 and 25.0.20, a stored and blind XSS vulnerability exists in the Phone Number field of the user profile within the GroupOffice application. This allows a malicious actor to inject persistent JavaScript payloads, which are triggered in the context of another user when they view the Address Book. Successful exploitation enables actions such as forced redirects, unauthorized fetch requests, or other arbitrary JavaScript execution without user interaction. Versions 6.8.119 and 25.0.20 contain a fix for the issue.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (20.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 20.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Intermesh Group-Office
- Intermesh Groupoffice — versions < 6.8.119, < 25.0.20
Weakness classification (CWE)
References
- github.com/Intermesh/groupoffice/security/advisories/GHSA-phhq-3h8f-qxpx (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-48366?
- CVE-2025-48366 is a medium-severity vulnerability in Intermesh Group-Office, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-05-22.
- How severe is CVE-2025-48366?
- Medium severity. CVSS v3 base score is 5.4 out of 10.