CVE-2023-31207

CVE-2023-31207 is a medium-severity vulnerability in Checkmk with a CVSS 3.x base score of 4.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-532.

Key facts

• Severity: Medium (CVSS 3.x base score 4.4)
• EPSS exploit prediction: 0% (13th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-532
• Affected product: Checkmk
• Published: 2023-05-02
• Last modified: 2026-06-17

Description

Transmission of credentials within query parameters in Checkmk <= 2.1.0p26, <= 2.0.0p35, and <= 2.2.0b6 (beta) may cause the automation user's secret to be written to the site Apache access log.

Frequently asked questions

What is CVE-2023-31207?

Transmission of credentials within query parameters in Checkmk <= 2.1.0p26, <= 2.0.0p35, and <= 2.2.0b6 (beta) may cause the automation user's secret to be written to the site Apache access log.

How severe is CVE-2023-31207?

CVE-2023-31207 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-31207 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-31207?

CVE-2023-31207 primarily affects Checkmk. In total, 86 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-31207?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-31207 published?

CVE-2023-31207 was published on 2023-05-02 and last updated on 2026-06-17.

References

• https://checkmk.com/werk/15189

Affected products (86)

• cpe:2.3:a:checkmk:checkmk:2.0.0:-:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:b1:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:b2:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:b3:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:b4:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:b5:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:b6:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:b7:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:b8:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:i1:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p1:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p10:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p11:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p12:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p13:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p14:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p15:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p16:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p17:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p18:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p19:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p2:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p20:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p21:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p22:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p23:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p24:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p25:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p26:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p27:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p28:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p29:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p3:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p30:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p31:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p32:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p33:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p34:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p35:*:*:*:*:*:*
• cpe:2.3:a:checkmk:checkmk:2.0.0:p4:*:*:*:*:*:*

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