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SOGo EUVD-2026-30804

| CVE-2026-8851 HIGH
SQL Injection (CWE-89)
2026-05-18 VulnCheck GHSA-7vv4-j48f-wcx7
8.6
CVSS 4.0
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CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

3
Source Code Evidence Fetched
May 18, 2026 - 21:32 vuln.today
Analysis Generated
May 18, 2026 - 21:32 vuln.today
CVSS changed
May 18, 2026 - 21:22 NVD
8.1 (HIGH) 8.6 (HIGH)

DescriptionNVD

SOGo 5.12.7 contains a SQL injection vulnerability in the Access Control List management functionality that allows authenticated users to extract arbitrary data from the database by injecting SQL subqueries through the uid parameter of the addUserInAcls endpoint. Attackers can inject malicious SQL code to write extracted data into the sogo_acl table and retrieve it through the /acls API, establishing an out-of-band data exfiltration channel.

AnalysisAI

SQL injection in SOGo 5.12.7 (Alinto's open-source groupware/webmail platform) allows authenticated users to exfiltrate arbitrary database contents by injecting subqueries through the uid parameter of the addUserInAcls endpoint, then reading the staged data back via the /acls API. The flaw, reported by VulnCheck (with credit to dninh of SACOMBANK), is fixed in 5.12.8; no public exploit identified at time of analysis and the CVE is not on CISA KEV.

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RemediationAI

Within 24 hours: Identify all SOGo 5.12.7 deployments and active user count; assess data sensitivity in affected instances. Within 7 days: Upgrade all instances to SOGo 5.12.8 per vendor advisory. …

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EUVD-2026-30804 vulnerability details – vuln.today

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