CVE-2026-29136

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 61/100
Published: 2026-04-02 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Passive
S: X
AT: None
VC: None
VI: Low
VA: None

Description

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

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
seppmail secure_email_gateway < 15.0.3

Bug Bounty Relevance

61 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

5.3 / 10.0 v4.0
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

EPSS — Exploitation Probability

0.10%
Raw Score 0.001000
Percentile 0.8%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00100
2026-10-28
0.00100

Intelligence Sources

nvd ref →