CVE-2026-29136

—

CVSS 4.0

5.3 medium

EPSS

<1%p1

Published

Apr 2, 2026 (Apr 2, 2026)

Modified

Jun 17, 2026

Description

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to inject HTML into notification emails about new CA certificates.

Vendors: seppmail
Products: secure email gateway
Weakness: CWE-79
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

NVD CVE.org GitHub PoCs EPSS (0.1%)

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