What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 4.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-04 · updated 2026-09-08
• Weakness: CWE-89

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.

Affected products

• emlog: before 2.6.16

References

• https://github.com/emlog/emlog/commit/92b6eea618891b28ed0c520564dff26e170645b4
• https://github.com/emlog/emlog/releases/tag/pro-2.6.16
• https://github.com/emlog/emlog/security/advisories/GHSA-xq97-53c2-vvfg
• https://github.com/emlog/emlog/security/advisories/GHSA-xq97-53c2-vvfg

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