CVE-2026-30237: Group-Office: Self XSS in GroupOffice Installer License Page (install/license.php)
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 the GroupOffice installer, endpoint install/license.php. The POST field license is rendered without escaping inside a <textarea>, allowing a </textarea><script>...</script> breakout.. This issue has been patched in versions 6.8.155, 25.0.88, and 26.0.10.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-30237?
CVE-2026-30237 is classified as a reflected Cross-Site Scripting (XSS) vulnerability.
How do I fix CVE-2026-30237?
To fix CVE-2026-30237, upgrade GroupOffice to versions 6.8.155, 25.0.88, or 26.0.10 or later.
What software is affected by CVE-2026-30237?
CVE-2026-30237 affects GroupOffice versions prior to 6.8.155, 25.0.88, and 26.0.10.
Can CVE-2026-30237 be exploited remotely?
Yes, CVE-2026-30237 can be exploited remotely through the installation license page of GroupOffice.
What actions should I take if I’m using an affected version of GroupOffice with CVE-2026-30237?
If using an affected version, you should promptly update to a secure version to mitigate the risk from CVE-2026-30237.