PT-2026-29700 · Seppmail · Secure Email Gateway

Andris Suter-Dörig + 2 · Published 2026-04-02 · Updated 2026-04-02 · CVE-2026-29136

Mitre

CVSS v4.0

5.3

Medium

AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

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

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-29136

Affected Products

Secure Email Gateway

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-29136 · Security Note
• https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#seppmail-vulnerability-disclosure-1503 · Note