CVE-2026-53756

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    CVE-2026-53756

    Published: 4 Sept 2026Last Modified: 10 Sept 2026

    Summary: Emlog Blind SQL Injection via Authentication Cookie

    Details: 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.

    References: https://github.com/emlog/emlog/releases/tag/pro-2.6.16, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53756.json, https://github.com/emlog/emlog/security/advisories/GHSA-xq97-53c2-vvfg, https://nvd.nist.gov/vuln/detail/CVE-2026-53756, https://github.com/emlog/emlog/commit/92b6eea618891b28ed0c520564dff26e170645b4

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -92b6eea618891b28ed0c520564dff26e170645b4

    Affected versions

    pro-2.6.15
    pro-2.6.14
    pro-2.6.13
    pro-2.6.12
    pro-2.6.11
    pro-2.6.10
    pro-2.6.9
    pro-2.6.8
    pro-2.6.7
    pro-2.6.6
    pro-2.6.5
    pro-2.6.4
    pro-2.6.3
    pro-2.6.2
    pro-2.6.1
    pro-2.6.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-53756 | CVE-DB