CVE-2026-27443
HIGH WAF: Medium
CVSS 7.5
Published: 2026-03-04
CWE-20
SEPPmail Secure Email Gateway before version 15.0.1 does not properly sanitize the headers from S/MIME protected MIME entities, allowing an attacker to control trusted headers.
WAF Coverage Analysis
Improper Input Validation
Medium WAF Coverage
OWASP: A03:2021 Injection
920xxx - Protocol Enforcement 941xxx - XSS / XXE 942xxx - SQL Injection
Affected Software
| Vendor | Product | Version |
|---|---|---|
| seppmail | seppmail | up to 15.0.1 |
References
- downloads.seppmail.com (Vendor Advisory)