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5.1
Group-Office: Malicious Code Can Run in Your Browser
CVE-2026-30238
Summary
Group-Office's customer relationship management tool has a security flaw that allows hackers to inject code into users' browsers, potentially stealing sensitive information or taking control of the browser. If you're using an earlier version, update to 6.8.155, 25.0.88, or 26.0.10 to fix the issue.
Original title
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 exte...
Original description
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.
nvd CVSS4.0
5.1
Vulnerability type
CWE-79
Cross-site Scripting (XSS)
Published: 6 Mar 2026 · Updated: 13 Mar 2026 · First seen: 7 Mar 2026