CVE-2026-53756

4.9 mediumEPSS 0.4%

Medium (4.9). EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

4.9 medium

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 37% of CVEs (scores of 2026-10-31)
CWE: CWE-89
Published: 2026-09-04
Modified: 2026-09-08
Record from: the NVD, synced 2026-10-19

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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