CVE-2020-28919 json
A stored cross site scripting (XSS) vulnerability in Checkmk 1.6.0x prior to 1.6.0p19 allows an authenticated remote attacker to inject arb…
published 2022-01-15 4 y ago modified 2026-06-17 4 mo ago also EUVD-2020-21310
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 66%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
Exploit prediction
1.11% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- emacsninja.com https://emacsninja.com/posts/cve-2020-28919-stored-xss-in-checkmk-160p18.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/tribe29/checkmk/commit/c00f450f884d8a229b7d8ab3f0452ed802a1ae04
patch, third-party-advisory
-
github.com
/tribe29/checkmk/commit/e7fd8e4c90be490e4293ec91804d00ec01af5ca6
patch
-
emacsninja.com
/posts/cve-2020-28919-stored-xss-in-checkmk-160p18.html
exploit, third-party-advisory
-
checkmk.com
/check_mk-werks.php?werk_id=11501
vendor-advisory
Sources
- CVE List CVE-2020-28919
- NVD CVE-2020-28919
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.