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CVE-2026-53756— Emlog Blind SQL Injection via Authentication Cookie

Quick assessment

Affected
emlog emlog
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.

emlog是emlog团队开源的一款轻量级博客内容管理系统。 emlog 2.6.16之前版本存在SQL注入漏洞，该漏洞源于User_Model::getUserDataByLogin()中$account参数直接拼接至SQL查询且未经过滤，可能导致盲SQL注入攻击。

CVSS 4.9 · Medium EPSS 0.43% · P36

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
emlog emlog < 2.6.16 affected
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I. Basic Information for CVE-2026-53756

Vulnerability Information
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Vulnerability Title
Emlog Blind SQL Injection via Authentication Cookie
Source: CVE Program / CVE List V5
Vulnerability Description
Emlog is an open source website building system. Prior to version 2.6.16, Emlog CMS Pro contains a blind SQL injection in User_Model::getUserDataByLogin(). The $account parameter is directly interpolated into SQL queries without any filtering. The vulnerability is reachable through the auth cookie validation path, where $username is extracted from the cookie and passed unfiltered into SQL — guarded only by an HMAC signature that requires AUTH_KEY to forge. This issue has been patched in version 2.6.16.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5
Vulnerability Title
emlog SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
emlog是emlog团队开源的一款轻量级博客内容管理系统。 emlog 2.6.16之前版本存在SQL注入漏洞，该漏洞源于User_Model::getUserDataByLogin()中$account参数直接拼接至SQL查询且未经过滤，可能导致盲SQL注入攻击。
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
emlog emlog < 2.6.16 -

II. Public POCs for CVE-2026-53756

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III. Intelligence Information for CVE-2026-53756

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Patches & Fixes for CVE-2026-53756 (1)

Vendor Advisories for CVE-2026-53756 (1)

Vendor Pages for CVE-2026-53756 (1)

Same Patch Batch · emlog · 2026-09-04 · 4 CVEs total

CVE-2026-53758 8.7 HIGH Emlog: Stored XSS via Parsedown Markdown Processing - Raw HTML Not Sanitized
CVE-2026-53757 6.9 MEDIUM Emlog: Zip Slip Path Traversal in Plugin/Template ZIP Upload Enables RCE
CVE-2026-73848 6.9 MEDIUM Emlog: Stored XSS via Tag Name in Article Editor

IV. Related Vulnerabilities

Same product: emlog
Same vendor: emlog
Same weakness: CWE-89

V. Comments for CVE-2026-53756

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