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CVE-2026-121452

HIGH
MEDIUM Priority: 0.02 BB Relevance: 67/100
Published: 2026-11-03 Modified: 2026-11-03 First seen: 2026-11-03 Status: active

Attack Surface

Network No Auth No Interaction Conf. Impact

CVSS Vector Breakdown

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

Description

bbs-go through 4.4.6 contains an improper certificate validation vulnerability that allows network-positioned attackers to intercept SMTP traffic because sendEmail() sets InsecureSkipVerify to true. Attackers can present any certificate to capture SMTP PLAIN auth credentials and read or modify outgoing password-reset and verification emails.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
mlogclub bbs-go 0
mlogclub bbs-go 0

References & Advisories (5)

Bug Bounty Relevance

67 / 100
✓ Network accessible
✓ No authentication
✓ No user interaction

CVSS Score

8.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/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

0.24%
Raw Score 0.002350
Percentile 14.5%
Date 2026-11-07

EPSS Trend

2026-11-07
0.00235
2026-11-06
0.00235
2026-11-05
0.00235
2026-11-04
0.00235

Intelligence Sources

mitre ref →
nvd ref →

External Links