CVE-2026-33755: Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.158, 25.0.92…
CVE-2026-33755 · Severity: high · CVSS 8.8 · Published 2026-03-27
Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.158, 25.0.92, and 26.0.17, an authenticated SQL Injection vulnerability in the JMAP `Contact/query` endpoint allows any authenticated user with basic addressbook access to extract arbitrary data from the database — including active session tokens of other users. This enables full account takeover of any user, including the System Administrator, without knowing their password. Versions 6.8.158, 25.0.92, and 26.0.17 fix the issue.
No. Junglewise Threat Intelligence has no report of CVE-2026-33755 being exploited in the wild.
How severe is CVE-2026-33755?
High severity, with a CVSS score of 8.8, published 27 March 2026.
Which products and versions are affected?
Intermesh Group-Office. The advisory does not name versions.
Is there a fix for CVE-2026-33755?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-33755?
Check whether you run Intermesh Group-Office. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.