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    CVE-2026-44129

    SEPPmail Secure Email Gateway before version 15.0.4 contains a server-side template injection vulnerability in the new GINA UI because an endpoint accepts attacker-controlled template, allowing remote attackers to execute arbitrary template expressions and potentially achieve remote code execution depending on the enabled template plugins.

    Published:May 8, 2026
    Last Modified:May 18, 2026
    EPS:May 8, 2026
    EPSS Score:0.00434
    CVSS Score:8.3

    Affected Products

    Vendor
    Seppmail
    Product
    Secure Email Gateway

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-84830 (CVSS 8.6) — SEPPmail Secure Email Gateway before 15.0.7 contains a command injection vulnerability that allows authenticat…
    CVE-2026-8811 (CVSS 7.1) — SEPPmail versions before 15.0.5 allow improper handling of attachment filenames during encrypted PDF generatio…
    CVE-2026-44126 (CVSS 9.2) — SEPPmail Secure Email Gateway before version 15.0.4 insecurely deserializes untrusted data, which can be reach…
    CVE-2026-44125 (CVSS 9.3) — SEPPmail Secure Email Gateway before version 15.0.4 fails to enforce authorization checks for multiple endpoin…
    CVE-2026-44128 (CVSS 9.3) — SEPPmail Secure Email Gateway before version 15.0.2.1 allows unauthenticated remote code execution in the new …
    CVE-2026-44127 (CVSS 8.8) — SEPPmail Secure Email Gateway before version 15.0.4 contains an unauthenticated path traversal vulnerability i…
    CVE-2026-7864 (CVSS 6.9) — SEPPmail Secure Email Gateway before version 15.0.4 exposes server environment variables through an unauthenti…
    CVE-2026-29136 (CVSS 5.3) — SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to inject HTML into notification emails…
    CVE-2026-29139 (CVSS 7.8) — SEPPmail Secure Email Gateway before version 15.0.3 allows account takeover by abusing GINA account initializa…
    CVE-2026-29144 (CVSS 7.8) — SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to bypass subject sanitization and forg…

    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