CVE-2026-33276CWE-79

XSS in Unified Search via Unescaped Host/Service Names

High · published March 31, 2026

CVSS v4.0
8.6
EPSS
0%
Percentile
13.2
In the wild
Unconfirmed
What it is

Stored cross-site scripting (XSS) in Checkmk 2.5.0 (beta) before 2.5.0b2 allows authenticated users with permission to create hosts or services to execute arbitrary JavaScript in the browsers of other users performing searches in the Unified Search feature.

The record
Technical detail
CVSS v4.0
8.6 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:L/SA:N
EPSS
0.00231 · 13.2th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-03-31T13:44Z
EPSS history
Timeline
  • 31 MAR 13:44Z
    XSS in Unified Search via Unescaped Host/Service Names
    cvelistv5