CVE-2023-22288

5.4 mediumEPSS 0.4%

Medium (5.4). EPSS 0.4% chance of exploitation in the next 30 days.

HTML Email Injection in Tribe29 Checkmk <=2.1.0p23; <=2.0.0p34, and all versions of Checkmk 1.6.0 allows an authenticated attacker to inject malicious HTML into Emails

Severity

CVSS 3.1

5.4 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 34% of CVEs (scores of 2026-10-31)
CWEs: CWE-79, CWE-138
Published: 2023-03-20
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

checkmk:checkmk
tribe29:checkmk

References

https://checkmk.com/werk/15069
https://checkmk.com/werk/15069

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