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CVE-2026-33755— Authenticated SQL Injection in Contact/query addressBookIds filter

Quick assessment

Affected
Intermesh groupoffice
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

groupoffice是Intermesh开源的一个集团办公室群件和CRM。 groupoffice 6.8.158之前版本、25.0.92之前版本和26.0.17之前版本存在SQL注入漏洞，该漏洞源于JMAP Contact/query端点存在经过身份验证的SQL注入，可能导致任意数据提取和账户接管。

CVSS 8.8 · High EPSS 0.46% · P38
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I. Basic Information for CVE-2026-33755

Vulnerability Information
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Vulnerability Title
Authenticated SQL Injection in Contact/query addressBookIds filter
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5
Vulnerability Title
groupoffice SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
groupoffice是Intermesh开源的一个集团办公室群件和CRM。 groupoffice 6.8.158之前版本、25.0.92之前版本和26.0.17之前版本存在SQL注入漏洞，该漏洞源于JMAP Contact/query端点存在经过身份验证的SQL注入，可能导致任意数据提取和账户接管。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Intermesh groupoffice < 6.8.158 -

II. Public POCs for CVE-2026-33755

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III. Intelligence Information for CVE-2026-33755

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Vendor Advisories for CVE-2026-33755 (1)

IV. Related Vulnerabilities

Same product: groupoffice
Same vendor: Intermesh
Same weakness: CWE-89

V. Comments for CVE-2026-33755

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