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    CVE-2026-9592

    SEPPmail Secure Email Gateway & SEPPmail Cloud before version 15.0.4.2 allows an attacker to replay & hijack a user session in the GINA web portal, as the session token is disclosed inside the URL and a HTTP header.

    Published:Jul 17, 2026
    Last Modified:Jul 30, 2026
    EPS:Jul 17, 2026
    EPSS Score:0.00153
    CVSS Score:7.5

    Affected Products

    Vendor
    Seppmail
    Product
    Seppmail Secure Email Gateway

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-84832 (CVSS 8.6) — SEPPmail Secure Email Gateway before 15.0.6 deserializes attacker-controlled data in a privileged REST import …
    CVE-2026-84831 (CVSS 7.7) — SEPPmail Secure Email Gateway before 15.0.7 creates a fully privileged session before required multi-factor au…
    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…
    CVE-2026-29143 (CVSS 7.8) — SEPPmail Secure Email Gateway before version 15.0.3 does not properly authenticate the inner message of S/MIME…
    CVE-2026-29138 (CVSS 6.3) — SEPPmail Secure Email Gateway before version 15.0.3 allows attackers with a specially crafted email address to…
    CVE-2026-29131 (CVSS 4.9) — SEPPmail Secure Email Gateway before version 15.0.3 allows attackers with a specially crafted email address to…
    CVE-2026-29142 (CVSS 6.3) — SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to forge a GINA-encrypted email.…
    CVE-2026-29137 (CVSS 5.3) — SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to hide security tags from users by cra…

    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