CVE-2026-29136

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

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#seppmail-vulnerability-disclosure-1503	Release Notes

Configurations

Configuration 1 (hide)

cpe:2.3:a:seppmail:secure_email_gateway:*:*:*:*:*:*:*:*

History

16 Apr 2026, 19:02

Type	Values Removed	Values Added
CPE		cpe:2.3:a:seppmail:secure_email_gateway::::::::
First Time		Seppmail Seppmail secure Email Gateway
References	~~() https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#seppmail-vulnerability-disclosure-1503 -~~	() https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#seppmail-vulnerability-disclosure-1503 - Release Notes
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.1

02 Apr 2026, 09:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-02 09:16

Updated : 2026-04-16 19:02

NVD link : CVE-2026-29136

Mitre link : CVE-2026-29136

CVE.ORG link : CVE-2026-29136

JSON object : View

Products Affected

seppmail

secure_email_gateway

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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