What is CVE-2020-18889?

CVE-2020-18889 is a medium-severity vulnerability in Puppycms, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.5/10. Published 2021-05-06.

How severe is CVE-2020-18889?

Medium severity. CVSS v3 base score is 6.5 out of 10.

CSRF in Puppycms

CVE-2020-18889

Cross Site Request Forgery (CSRF) vulnerability in puppyCMS v5.1 that can change the admin's password via /admin/settings.php.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2021-05-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.004 (35.7th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.004 · change: -0.001

Affected products

Puppycms — versions 5.1

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

github.com/choregus/puppyCMS/issues/13 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2020-18889?: CVE-2020-18889 is a medium-severity vulnerability in Puppycms, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.5/10. Published 2021-05-06.
How severe is CVE-2020-18889?: Medium severity. CVSS v3 base score is 6.5 out of 10.