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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.

PUBLISHED Reserved 2026-03-23 | Published 2026-03-27 | Updated 2026-03-27 | Assigner GitHub_M




HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Product status

< 6.8.158
affected

< 25.0.92
affected

< 26.0.17
affected

References

github.com/...office/security/advisories/GHSA-3gc4-5993-c2qc

cve.org (CVE-2026-33755)

nvd.nist.gov (CVE-2026-33755)

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