EUVD-2026-18148
GHSA-v5jf-vjfx-frfr
5.3
CVSS 4.0
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CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X
Lifecycle Timeline
3
EUVD ID Assigned
Apr 02, 2026 - 08:45 euvd
EUVD-2026-18148
Analysis Generated
Apr 02, 2026 - 08:45 vuln.today
CVE Published
Apr 02, 2026 - 08:29 nvd
MEDIUM 5.3
Description
SEPPmail Secure Email Gateway before version 15.0.3 allows an external user to modify GINA webdomain metadata and bypass per-domain restrictions.
Analysis
SEPPmail Secure Email Gateway before version 15.0.3 allows unauthenticated external users to modify GINA webdomain metadata and bypass per-domain restrictions, enabling attackers to circumvent email security controls across isolated security domains. NCSC.ch reported this authentication bypass vulnerability affecting all versions prior to 15.0.3. …
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Priority Score
27
Low
Medium
High
Critical
KEV: 0
EPSS: +0.1
CVSS: +26
POC: 0
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External POC / Exploit Code
Leaving vuln.today
Destination URL
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