Emlog Blind SQL Injection via Authentication Cookie

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-53756
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-04 18:17:52 UTC
Updated2026-09-08 21:05:26 UTC
DescriptionEmlog 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.

Risk And Classification

Primary CVSS: v3.1 4.9 MEDIUM from [email protected]

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

EPSS: 0.003180000 probability, percentile 0.244060000 (date 2026-09-08)

Problem Types: CWE-89 | CWE-89 CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.9MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
3.1CNADECLARED4.9MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Emlog Emlog affected < 2.6.16 Not specified

References

ReferenceSourceLinkTags
github.com/emlog/emlog/commit/92b6eea618891b28ed0c520564dff26e170645b4 [email protected] github.com
github.com/emlog/emlog/releases/tag/pro-2.6.16 [email protected] github.com
github.com/emlog/emlog/security/advisories/GHSA-xq97-53c2-vvfg 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
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