What is CVE-2020-35614?

CVE-2020-35614 is a medium-severity vulnerability in Joomla Joomla\!. CVSS score: 5.3/10. Published 2020-12-28.

How severe is CVE-2020-35614?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Joomla Joomla\!

CVE-2020-35614

An issue was discovered in Joomla! 3.9.0 through 3.9.22. Improper handling of the username leads to a user enumeration attack vector in the backend login page.

Published 2020-12-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.011 (63.9th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: +0.000

Affected products

Joomla Joomla\!
Joomla! Project Cms — versions 3.9.0-3.9.22

References

developer.joomla.org/security-centre/832-20201105-core-user-enumeration-in-back… (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2020-35614?: CVE-2020-35614 is a medium-severity vulnerability in Joomla Joomla\!. CVSS score: 5.3/10. Published 2020-12-28.
How severe is CVE-2020-35614?: Medium severity. CVSS v3 base score is 5.3 out of 10.