🛡️ CVE-2026-45551
⚪ Unknown ✅ No Known Exploit CWE-79 NVD
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Group-Office is an enterprise customer relationship management and groupware tool. Prior to 26.0.25, 25.0.100, and 6.8.165, GroupOffice allows authenticated users to persist arbitrary legacy settings for any user_id via index.php?r=core/saveSetting. A separate client-side sink in the email module injects the email_font_size setting directly into JavaScript without escaping. By combining these two issues, any low-privileged authenticated user can overwrite an administrator's email_font_size setting with a JavaScript payload and trigger stored XSS in the administrator's browser when the GroupOffice web client loads views/Extjs3/modulescripts.php. This vulnerability is fixed in 26.0.25, 25.0.100, and 6.8.165.

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE CWE-79
Public Exploit ✅ No
Source NVD
Published 2026-05-29
Updated 2026-06-02
Modified 2026-05-29
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown — —

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