---
id: CVE-2026-53756
title: Emlog is an open source website building system
summary: >-
  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 filt…
severity: medium
cvss: 4.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-89
vendor: emlog
product: emlog
affected:
  - emlog < 2.6.16
published: '2026-09-04'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T21:05:26.920'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-53756'
references:
  - url: >-
      https://github.com/emlog/emlog/commit/92b6eea618891b28ed0c520564dff26e170645b4
    label: security-advisories@github.com
  - url: 'https://github.com/emlog/emlog/releases/tag/pro-2.6.16'
    label: security-advisories@github.com
  - url: 'https://github.com/emlog/emlog/security/advisories/GHSA-xq97-53c2-vvfg'
    label: security-advisories@github.com
  - url: 'https://github.com/emlog/emlog/security/advisories/GHSA-xq97-53c2-vvfg'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00428
epssPercentile: 0.34307
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-08T17:42:05.509814Z'
ingestedAt: '2026-09-08T18:07:34.884Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.