CVE-2026-30238 — Group-Office: Reflected XSS in JavaScript context

Description (CNA)

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 (CNA)

Vendor / product	Versions
Intermesh / groupoffice	affected < 6.8.155; affected < 25.0.88; affected < 26.0.10

CWE

CWE-79

References

https://github.com/Intermesh/groupoffice/security/advisories/GHSA-7p2f-c33m-rv5v

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.