CVE-2026-33755
High
Description
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.
SeverityHigh
CVSS8.8
Exploit probability—
ProductIntermesh Group-office
PublishedMar 27, 2026
First seenMar 27, 2026
Weakness typeCWE-89SQL injection
How to fix
Update
- intermesh group-office6.8.158, 25.0.92, 26.0.17 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| intermesh group-office | v < 6.8.158, 25.0.1 ≤ v < 25.0.92, 26.0.1 ≤ v < 26.0.17 | 6.8.158, 25.0.92, 26.0.17 |
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