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CRITICAL

CVE-2020-18890

CVSS v3

9.8

CRITICAL

EPSS Score

1.5 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

Rmote Code Execution (RCE) vulnerability in puppyCMS v5.1 due to insecure permissions, which could let a remote malicious user getshell via /admin/functions.php.

Technical details

Published
2021-05-06

Frequently asked questions

What is CVE-2020-18890?

Rmote Code Execution (RCE) vulnerability in puppyCMS v5.1 due to insecure permissions, which could let a remote malicious user getshell via /admin/functions.php.

Is CVE-2020-18890 actively exploited?

Active exploitation of CVE-2020-18890 has not been confirmed. Its EPSS score was 1.5% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-18890?

CVE-2020-18890 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2020-18890 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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