What is CVE-2020-18888?

CVE-2020-18888 is a high-severity vulnerability in Puppycms, classified under Missing Authorization. CVSS score: 7.5/10. Published 2021-05-06.

How severe is CVE-2020-18888?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Puppycms

CVE-2020-18888

Arbitrary File Deletion vulnerability in puppyCMS v5.1 allows remote malicious attackers to delete the file/folder via /admin/functions.php.

Vulnerability class: Broken Access Control

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

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.008 (54.2th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Puppycms — versions 5.1

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

github.com/choregus/puppyCMS/issues/15 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2020-18888?: CVE-2020-18888 is a high-severity vulnerability in Puppycms, classified under Missing Authorization. CVSS score: 7.5/10. Published 2021-05-06.
How severe is CVE-2020-18888?: High severity. CVSS v3 base score is 7.5 out of 10.