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Fencer Vulns
critical 10.0

CVE-2020-27227 json

An exploitable unatuhenticated command injection exists in the OpenClinic GA 5.173.3.

published 2021-04-13 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-19740

cvss
10.0
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.9%
EPSS 2.9% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known

Summary

An exploitable unatuhenticated command injection exists in the OpenClinic GA 5.173.3. Specially crafted web requests can cause commands to be executed on the server. An attacker can send a web request with parameters containing specific parameter to trigger this vulnerability, potentially allowing exfiltration of the database, user credentials and compromise underlying operating system.

Exploit prediction

2.89% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • talosintelligence.com https://talosintelligence.com/vulnerability_reports/TALOS-2020-1203 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 10.0 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

  • n/a OpenClinic

Classification

Weakness
  • CWE-77 Improper Neutralization of Special Elements used in a Command
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

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.