CVE-2026-30238
March 06, 2026
Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.155, 25.0.88, and 26.0.10, there is a reflected XSS vulnerability in GroupOffice on the external/index flow. The f parameter (Base64 JSON) is decoded and then injected into an inline JavaScript block without strict escaping, allowing </script><script>...</script> injection and arbitrary JavaScript execution in the victim's browser. This issue has been patched in versions 6.8.155, 25.0.88, and 26.0.10.
Affected Packages
https://github.com/Intermesh/groupoffice.git (GITHUB):
Affected version(s) >=v26.0.1 <v26.0.11Fix Suggestion:
Update to version v26.0.11https://github.com/Intermesh/groupoffice.git (GITHUB):
Affected version(s) >=v6.8.1 <v6.8.155Fix Suggestion:
Update to version v6.8.155https://github.com/Intermesh/groupoffice.git (GITHUB):
Affected version(s) >=v25.0.1 <v25.0.89Fix Suggestion:
Update to version v25.0.89Related Resources (1)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
ACTIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EPSS
Base Score:
0.08
