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TI-2026-26134 Aliases CVE-2026-33755

Authenticated SQL Injection in Contact/query addressBookIds filter

Priority MEDIUM 40CWE-89Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
SQL injection
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-89.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00394 33rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed groupoffice (Intermesh): 6.8.158, 25.0.92, 26.0.17

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Intermeshgroupofficebefore 6.8.158; before 25.0.92; before 26.0.176.8.158, 25.0.92, 26.0.17Patch availableCNA
  • groupoffice VendorIntermesh Affected before 6.8.158; before 25.0.92; before 26.0.17 Fixed in 6.8.158, 25.0.92, 26.0.17 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:intermesh:group-office:*:*:*:*:*:*:*:*before 6.8.158; 25.0.1 to before 25.0.92; 26.0.1 to before 26.0.17VulnerableIntermesh
  • cpe:2.3:a:intermesh:group-office:*:*:*:*:*:*:*:* Versions before 6.8.158; 25.0.1 to before 25.0.92; 26.0.1 to before 26.0.17 Vulnerable ·Intermesh

Remediation

  • Fix · CNA groupoffice (Intermesh) Fixed in 6.8.158, 25.0.92, 26.0.17

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-33755

References

Exploit 1

  • TI-2025-30692 GroupOffice's Blind Stored XSS in Phone Number Field Enables Forced Redirect and Unauthorized Actions CVSS 4.0MEDIUM 6.9
  • TI-2025-30694 GroupOffice's DOM-Based XSS in all Date Input Fields Allows Arbitrary JavaScript Execution CVSS 4.0MEDIUM 5.8
  • TI-2025-31121 Group-Office vulnerable to reflected XSS via Look and Feel Formatting input CVSS 4.0MEDIUM 5.3
  • TI-2025-31120 Group-Office vulnerable to blind XSS CVSS 4.0MEDIUM 5.2
  • TI-2025-30695 GroupOffice vulnerable to Stored XSS in Tasks Comment Section CVSS 4.0MEDIUM 5.3
  • TI-2026-23471 Group-Office: Reflected XSS in JavaScript context CVSS 4.0MEDIUM 5.1
See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences