Open Redirect in Wordpress

CVE-2019-16220

In WordPress before 5.2.3, validation and sanitization of a URL in wp_validate_redirect in wp-includes/pluggable.php could lead to an open redirect if a provided URL path does not start with a forward slash.

Vulnerability class: Open Redirect

EPSS: 0.025 (83.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-16220?
CVE-2019-16220 is a medium-severity vulnerability in Wordpress, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2019-09-11.
How severe is CVE-2019-16220?
Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2019-16220 known to be exploited?
4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.