CVE-2026-53756
Received Received - Intake

Blind SQL Injection in Emlog CMS Pro

Publication date: 2026-09-04

Last updated on: 2026-09-04

Assigner: GitHub, Inc.

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-09-04
Last Modified
2026-09-04
Generated
2026-09-05
AI Q&A
2026-09-04
EPSS Evaluated
N/A
NVD
CVE-2026-53756
EUVD
EUVD-2026-71623

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
emlog cms_pro to 2.6.16 (exc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
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. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

Emlog CMS Pro before version 2.6.16 has a blind SQL injection flaw in the User_Model::getUserDataByLogin() function. The $account parameter is directly inserted into SQL queries without sanitization. This occurs during auth cookie validation when the username from the cookie is passed unfiltered into SQL, only protected by an HMAC signature requiring AUTH_KEY to forge.

Detection Guidance

To detect this vulnerability, check if your Emlog CMS Pro version is below 2.6.16. Inspect network traffic for SQL injection attempts in auth cookie validation paths. Monitor database logs for unusual queries containing the $account parameter.

Impact Analysis

An attacker could exploit this to extract sensitive data from the database, such as user credentials or personal information. Since the flaw is in the authentication path, it may allow unauthorized access to user accounts or administrative functions without needing valid credentials.

Compliance Impact

This vulnerability could lead to unauthorized data access, violating GDPR's data protection principles or HIPAA's security requirements for safeguarding protected health information. Organizations using vulnerable versions may face compliance breaches, legal penalties, and reputational damage.

Mitigation Strategies

Update Emlog CMS Pro to version 2.6.16 or later to patch the blind SQL injection vulnerability in User_Model::getUserDataByLogin().

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-53756. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart