UpHeron
All vulnerabilities

WordPress core

CVE-2020-4048

WordPress: Open redirect in wp_validate_redirect()

Severity
Medium 5.7
Published
12 Jun 2020
Last changed
17 Jun 2026
Added to UpHeron
17 Oct 2026
Fixed in
4.9.15, 5.0.10, 5.1.6, 5.2.7, 5.3.4, 5.4.2
Also known as
GHSA-q6pw-gvf4-5fj5
Sources
NVD, WordPress

Description

In affected versions of WordPress, due to an issue in wp_validate_redirect() and URL sanitization, an arbitrary external link can be crafted leading to unintended/open redirect when clicked. This has been patched in version 5.4.2, along with all the previously affected versions via a minor release (5.3.4, 5.2.7, 5.1.6, 5.0.10, 4.9.15, 4.8.14, 4.7.18, 4.6.19, 4.5.22, 4.4.23, 4.3.24, 4.2.28,…

Affected software

SoftwareAffected versions
WordPressWordPress core · cpe:a:wordpress:wordpress
  • From 5.4 before 5.4.2
  • From 5.3.0 before 5.3.4
  • From 5.2 before 5.2.7
  • From 5.1 before 5.1.6
All 19 release lines
  • From 3.7 before 3.7.34
  • From 3.7 before 5.4.2
  • From 3.8 before 3.8.34
  • From 3.9 before 3.9.32
  • From 4.0 before 4.0.31
  • From 4.1 before 4.1.31
  • From 4.2 before 4.2.28
  • From 4.3 before 4.3.24
  • From 4.4 before 4.4.23
  • From 4.5 before 4.5.22
  • From 4.6 before 4.6.19
  • From 4.7 before 4.7.18
  • From 4.8 before 4.8.14
  • From 4.9 before 4.9.15
  • From 5.0 before 5.0.10
  • From 5.1 before 5.1.6
  • From 5.2 before 5.2.7
  • From 5.3.0 before 5.3.4
  • From 5.4 before 5.4.2

References