EUVD-2026-18152
2026-04-02
NCSC.ch
5.3
CVSS 4.0
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CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/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
None
User Interaction
P
Scope
X
Lifecycle Timeline
3
EUVD ID Assigned
Apr 02, 2026 - 09:00 euvd
EUVD-2026-18152
Analysis Generated
Apr 02, 2026 - 09:00 vuln.today
CVE Published
Apr 02, 2026 - 08:53 nvd
MEDIUM 5.3
Tags
Description
SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to inject HTML into notification emails about new CA certificates.
Analysis
SEPPmail Secure Email Gateway before version 15.0.3 allows unauthenticated attackers to inject arbitrary HTML into notification emails about new CA certificates, enabling stored cross-site scripting (XSS) attacks against email recipients. An attacker with the ability to trigger CA certificate notifications can craft malicious HTML payloads that execute when recipients view the notification email, potentially leading to credential theft, malware distribution, or further compromise of email infrastructure. …
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Priority Score
27
Low
Medium
High
Critical
KEV: 0
EPSS: +0.0
CVSS: +26
POC: 0
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