CVE-2025-48366: GroupOffice's Blind Stored XSS in Phone Number Field Enables Forced Redirect and Unauthorized Actions
Description
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.
Classification
CVE ID: CVE-2025-48366
CVSS Base Severity: MEDIUM
CVSS Base Score: 5.4
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Problem Types
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE-87: Improper Neutralization of Alternate XSS SyntaxAffected Products
Vendor: Intermesh
Product: groupoffice
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.03% (probability of being exploited)
EPSS Percentile: 8.63% (scored less or equal to compared to others)
EPSS Date: 2025-06-18 (when was this score calculated)
Stakeholder-Specific Vulnerability Categorization (SSVC)
SSVC Exploitation: poc
SSVC Technical Impact: partial
SSVC Automatable: true
References
https://nvd.nist.gov/vuln/detail/CVE-2025-48366https://github.com/Intermesh/groupoffice/security/advisories/GHSA-phhq-3h8f-qxpx