MEDIUM
CVE-2023-22288
CWE-138Published: March 20, 2023· Updated: Jun 17, 2026
5.4
CVSS v3.1
Official Description
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
Technical Analysis
CVE-2023-22288 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionRequired
ScopeChanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
ADVISORYhttps://checkmk.com/werk/15069
ADVISORYhttps://checkmk.com/werk/15069
All References (2)
→
https://checkmk.com/werk/15069Vendor Advisory
→
https://checkmk.com/werk/15069Vendor Advisory
Quick Facts
CVE IDCVE-2023-22288
CVSS Score5.4 / 10
SeverityMEDIUM
WeaknessCWE-138
CISA KEVNo
Affected2 vendor(s)
PublishedMar 20, 2023
Related CVEs (CWE-138)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-22288 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.