Dashboard / CVE-2026-123620

CVE-2026-123620

HIGH
MEDIUM Priority: 0.11 BB Relevance: 66/100
Published: 2026-11-06 Modified: 2026-11-12 First seen: 2026-11-06 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

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

Description

Usermin through 2.570 contains an OS command injection vulnerability in the Read Mail module that allows authenticated users to execute commands through unsanitized IMAP folder names. Attackers can create a folder containing shell metacharacters via an external IMAP client, then delete it in Usermin to run commands as their system account, bypassing webmail-only restrictions.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
webmin usermin 0
webmin usermin 0

References & Advisories (6)

Bug Bounty Relevance

66 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

7.7 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/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

1.38%
Raw Score 0.013760
Percentile 72.5%
Date 2026-11-13

EPSS Trend

2026-11-13
0.01376
2026-11-12
0.01376
2026-11-10
0.01376
2026-11-09
0.01376
2026-11-08
0.01376
2026-11-07
0.01376

Intelligence Sources

mitre ref →
nvd ref →

External Links