← All advisories

Medium severity6.1NVD Advisory· Published Jan 28, 2020· Updated Jun 17, 2026

CVE-2020-8421

CVE-2020-8421

Description

An issue was discovered in Joomla! before 3.9.15. Inadequate escaping of usernames allows XSS attacks in com_actionlogs.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

4

Joomla/Joomla!2 versions
cpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*range: >=3.9.0,<3.9.14
- (no CPE)range: <3.9.15
Joomla!/Joomla!description
osv-coords
pkg:bitnami/joomla
Range: >= 3.9.0, < 3.9.14

Patches

Vulnerability mechanics

References

1

developer.joomla.org/security-centre/800-20200103-core-xss-in-com-actionlogsnvdVendor Advisory

News mentions

0

No linked articles in our index yet.