CVE-2026-121582

MEDIUM
MEDIUM Priority: 0.03 BB Relevance: 74/100
Published: 2026-11-03 Modified: 2026-11-09 First seen: 2026-11-03 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

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

Description

A vulnerability has been found in Umami up to 3.4.1. Impacted is an unknown function of the file src/app/api/record/route.ts of the component Record API Endpoint. Such manipulation of the argument Website leads to authorization bypass. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness Classification (2)

Affected Software (4)

VendorProductVersion
n/a Umami 3.4.0
n/a Umami 3.4.1
n/a Umami 3.4.0
n/a Umami 3.4.1

Bug Bounty Relevance

74 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

6.9 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

EPSS — Exploitation Probability

0.38%
Raw Score 0.003810
Percentile 32.6%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00381
2026-11-13
0.00381
2026-11-12
0.00381
2026-11-10
0.00381
2026-11-09
0.00381
2026-11-08
0.00381
2026-11-07
0.00381
2026-11-06
0.00381
2026-11-05
0.00381
2026-11-04
0.00381

Intelligence Sources

mitre ref →
nvd ref →