CVE-2026-8833
HIGH
MEDIUM
Priority: 0.01
BB Relevance:
57/100
Published: 2026-06-08
Modified: 2026-10-23
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
Low
UI:
Active
S:
X
AT:
None
VC:
High
VI:
High
VA:
High
Description
Improper neutralization of HTML-encoded characters in the URL validation function in Checkmk <2.5.0p5, <2.4.0p31, <2.3.0p48, and all 2.2.0 versions allows an authenticated user to bypass URL validation and inject malicious URLs such as javascript: URIs, resulting in cross-site scripting when another user interacts with the crafted link.
Weakness Classification (1)
Affected Software (157)
| Vendor | Product | Version |
|---|---|---|
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
| checkmk | checkmk | 2.2.0 |
Showing 30 of 157 entries
References & Advisories (1)
Vendor Advisory