CVE-2026-33755 | Intermesh GroupOffice up to 6.8.157/25.0.91/26.0.16 Contact/query sql injection

VDB-353929 · CVE-2026-33755 · GCVE-0-2026-33755 INTERMESH GROUPOFFICE UP TO 6.8.157/25.0.91/26.0.16 CONTACT/QUERY SQL INJECTION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 7.4 $0-$5k 1.09+ Summaryinfo A vulnerability identified as critical has been detected in Intermesh GroupOffice up to 6.8.157/25.0.91/26.0.16. This issue affects some unknown processing of the file Contact/query. This manipulation causes sql injection. The identification of this vulnerability is CVE-2026-33755. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component. Detailsinfo A vulnerability has been found in Intermesh GroupOffice up to 6.8.157/25.0.91/26.0.16 and classified as critical. Affected by this vulnerability is some unknown functionality of the file Contact/query. The manipulation with an unknown input leads to a sql injection vulnerability. The CWE definition for the vulnerability is CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is: 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. The advisory is shared at github.com. This vulnerability is known as CVE-2026-33755 since 03/23/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1505 for this issue. Upgrading to version 6.8.158, 25.0.92 or 26.0.17 eliminates this vulnerability. Productinfo Vendor Intermesh Name GroupOffice Version 6.8.157 25.0.0 25.0.1 25.0.2 25.0.3 25.0.4 25.0.5 25.0.6 25.0.7 25.0.8 25.0.9 25.0.10 25.0.11 25.0.12 25.0.13 25.0.14 25.0.15 25.0.16 25.0.17 25.0.18 25.0.19 25.0.20 25.0.21 25.0.22 25.0.23 25.0.24 25.0.25 25.0.26 25.0.27 25.0.28 25.0.29 25.0.30 25.0.31 25.0.32 25.0.33 25.0.34 25.0.35 25.0.36 25.0.37 25.0.38 25.0.39 25.0.40 25.0.41 25.0.42 25.0.43 25.0.44 25.0.45 25.0.46 25.0.47 25.0.48 25.0.49 25.0.50 25.0.51 25.0.52 25.0.53 25.0.54 25.0.55 25.0.56 25.0.57 25.0.58 25.0.59 25.0.60 25.0.61 25.0.62 25.0.63 25.0.64 25.0.65 25.0.66 25.0.67 25.0.68 25.0.69 25.0.70 25.0.71 25.0.72 25.0.73 25.0.74 25.0.75 25.0.76 25.0.77 25.0.78 25.0.79 25.0.80 25.0.81 25.0.82 25.0.83 25.0.84 25.0.85 25.0.86 25.0.87 25.0.88 25.0.89 25.0.90 25.0.91 26.0.0 26.0.1 26.0.2 26.0.3 26.0.4 26.0.5 26.0.6 26.0.7 26.0.8 26.0.9 26.0.10 26.0.11 26.0.12 26.0.13 26.0.14 26.0.15 26.0.16 Website Product: https://github.com/Intermesh/groupoffice/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 7.6 VulDB Meta Temp Score: 7.4 VulDB Base Score: 6.3 VulDB Temp Score: 6.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 8.8 CNA Vector (GitHub_M): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Sql injection CWE: CWE-89 / CWE-74 / CWE-707 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: GroupOffice 6.8.158/25.0.92/26.0.17 Timelineinfo 03/23/2026 CVE reserved 03/27/2026 +4 days Advisory disclosed 03/27/2026 +0 days VulDB entry created 03/27/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: github.com Status: Confirmed CVE: CVE-2026-33755 (🔒) GCVE (CVE): GCVE-0-2026-33755 GCVE (VulDB): GCVE-100-353929 Entryinfo Created: 03/27/2026 15:49 Changes: 03/27/2026 15:49 (64) Complete: 🔍 Cache ID: 99:371:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸