An issue was discovered in Joomla!

published 2020-08-26 6 y ago modified 2026-09-08 2 mo ago also BIT-joomla-2020-24598 , EUVD-2020-17315

cvss: 6.1; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.0%; EPSS 1.0% chance of exploitation in 30 days, percentile 63%
public exploits: 0; none known

An issue was discovered in Joomla! before 3.9.21. Lack of input validation in the vote feature of com_content leads to an open redirect.

Patch / fix

fixed in 2

bitnami joomla 3.9.21
joomla joomla! 3.9.21

Exploit prediction

1.00% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	5.8	AV:N/AC:M/Au:N/C:P/I:P/A:N
OSV	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
bitnami	joomla	>=3.0.0, <3.9.21	3.9.21

Classification

Weakness

CWE-601 URL Redirection to Untrusted Site

References

developer.joomla.org /security-centre/825-20200802-core-open-redirect-in-com-content-vote-feature
vendor-advisory, advisory
nvd.nist.gov /vuln/detail/CVE-2020-24598
web

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary