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CVE-2026-33755

Intermesh Group-office SQL injection

8.8 HIGHPublic exploitEPSS 0.46%
  1. Published27 Mar 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Intermesh Group-office≥ 25.0.1 < 25.0.92 · ≥ 26.0.1 < 26.0.17 · < 6.8.158

Remediation

Fixed in
Intermesh Group-office≥ 25.0.92

References

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Frequently asked

Is CVE-2026-33755 being actively exploited?

CVE-2026-33755 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.46%.

How severe is CVE-2026-33755?

CVE-2026-33755 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 0.46% probability of exploitation.

Which products are affected by CVE-2026-33755?

Affected products include Intermesh Group-office.

How do I fix CVE-2026-33755?

Upgrade affected software to a fixed version, for example Intermesh Group-office 25.0.92 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-33755 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.