What’s Vulnerable › Vulnerabilities

CVE-2020-28919

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-01-15 · updated 2026-06-17
• Weakness: CWE-79

Description

A stored cross site scripting (XSS) vulnerability in Checkmk 1.6.0x prior to 1.6.0p19 allows an authenticated remote attacker to inject arbitrary JavaScript via a javascript: URL in a view title.

Affected products

• Checkmk GmbH Checkmk: 1.6.0, 1.6.0-b1, 1.6.0-b10, 1.6.0-b12, 1.6.0-b3, 1.6.0-b4 (+20)

References

• https://checkmk.com/check_mk-werks.php?werk_id=11501
• https://emacsninja.com/posts/cve-2020-28919-stored-xss-in-checkmk-160p18.html
• https://github.com/tribe29/checkmk/commit/c00f450f884d8a229b7d8ab3f0452ed802a1ae04
• https://github.com/tribe29/checkmk/commit/e7fd8e4c90be490e4293ec91804d00ec01af5ca6
• https://checkmk.com/check_mk-werks.php?werk_id=11501
• https://emacsninja.com/posts/cve-2020-28919-stored-xss-in-checkmk-160p18.html
• https://github.com/tribe29/checkmk/commit/c00f450f884d8a229b7d8ab3f0452ed802a1ae04
• https://github.com/tribe29/checkmk/commit/e7fd8e4c90be490e4293ec91804d00ec01af5ca6

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