What is CVE-2020-20514?

CVE-2020-20514 is a high-severity vulnerability in Maccms, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.1/10. Published 2021-09-24.

How severe is CVE-2020-20514?

High severity. CVSS v3 base score is 8.1 out of 10.

CSRF in Maccms

CVE-2020-20514

A Cross-Site Request Forgery (CSRF) in Maccms v10 via admin.php/admin/admin/del/ids/<id>.html allows authenticated attackers to delete all users.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2021-09-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (34.9th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 34.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Maccms — versions 10.0

Weakness classification (CWE)

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

References

github.com/magicblack/maccms10/issues/76 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-20514?: CVE-2020-20514 is a high-severity vulnerability in Maccms, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.1/10. Published 2021-09-24.
How severe is CVE-2020-20514?: High severity. CVSS v3 base score is 8.1 out of 10.