Description
SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to inject HTML into notification emails about new CA certificates.
Published: 2026-04-02
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: HTML Injection
Action: Apply Patch
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Thu, 16 Apr 2026 19:15:00 +0000

Type Values Removed Values Added
First Time appeared Seppmail secure Email Gateway
CPEs cpe:2.3:a:seppmail:secure_email_gateway:*:*:*:*:*:*:*:*
Vendors & Products Seppmail secure Email Gateway
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}


Thu, 02 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 02 Apr 2026 09:00:00 +0000

Type Values Removed Values Added
Description SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to inject HTML into notification emails about new CA certificates.
Title CA Notification HTML Injection
First Time appeared Seppmail
Seppmail seppmail Secure Email Gateway
Weaknesses CWE-79
CPEs cpe:2.3:a:seppmail:seppmail_secure_email_gateway:*:*:*:*:*:*:*:*
Vendors & Products Seppmail
Seppmail seppmail Secure Email Gateway
References
Metrics cvssV4_0

{'score': 5.3, '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'}


Subscriptions

Seppmail Secure Email Gateway Seppmail Secure Email Gateway
cve-icon MITRE

Status: PUBLISHED

Assigner: NCSC.ch

Published:

Updated: 2026-04-02T13:30:44.648Z

Reserved: 2026-03-04T09:08:03.277Z

Link: CVE-2026-29136

cve-icon Vulnrichment

Updated: 2026-04-02T13:30:38.794Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-02T09:16:21.963

Modified: 2026-04-16T19:02:56.970

Link: CVE-2026-29136

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-02T20:21:40Z

Weaknesses