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.
No credit card required · 500 free checks/month · Free API key
Other 2020 vulnerabilities worth triaging
Ranked by exploit probability (EPSS).