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CVE-2026-8851— SOGo < 5.12.8 SQL Injection via addUserInAcls endpoint

Quick assessment

Affected
Alinto SOGo Webmail
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SOGo是Alinto开源的一个非常快速且可扩展的现代协作套件。它提供日历、地址簿管理和功能齐全的 Webmail 客户端以及资源共享和权限处理。 SOGo 5.12.7版本存在SQL注入漏洞，该漏洞源于访问控制列表管理功能中addUserInAcls端点的uid参数存在SQL注入，可能导致认证用户提取数据库中的任意数据。

CVSS 8.1 · High EPSS 0.42% · P34

Affected Version Matrix 2

VendorProduct Version RangeStatus
Alinto SOGo Webmail 5.12.8 unaffected
≤ 5.12.7 affected
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I. Basic Information for CVE-2026-8851

Vulnerability Information
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Vulnerability Title
SOGo < 5.12.8 SQL Injection via addUserInAcls endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
SOGo versions 5.12.7 and prior 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.
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:N
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
SOGo SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SOGo是Alinto开源的一个非常快速且可扩展的现代协作套件。它提供日历、地址簿管理和功能齐全的 Webmail 客户端以及资源共享和权限处理。 SOGo 5.12.7版本存在SQL注入漏洞，该漏洞源于访问控制列表管理功能中addUserInAcls端点的uid参数存在SQL注入，可能导致认证用户提取数据库中的任意数据。
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
Alinto SOGo Webmail 5.12.8 -

II. Public POCs for CVE-2026-8851

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7911 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-8851

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Patches & Fixes for CVE-2026-8851 (1)

Vendor Advisories for CVE-2026-8851 (1)

Vendor Pages for CVE-2026-8851 (1)

IV. Related Vulnerabilities

Same vendor: Alinto
Same weakness: CWE-89

V. Comments for CVE-2026-8851

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