UpHeron
All vulnerabilities

WordPress core

CVE-2020-11026

Specially crafted filenames in WordPress leading to XSS

Severity
Medium 5.4
Published
30 Apr 2020
Last changed
17 Jun 2026
Added to UpHeron
17 Oct 2026
Fixed in
4.9.14, 5.0.9, 5.1.5, 5.2.6, 5.3.3, 5.4.1
Also known as
GHSA-3gw2-4656-pfr2
Sources
NVD, WordPress

Description

In affected versions of WordPress, files with a specially crafted name when uploaded to the Media section can lead to script execution upon accessing the file. This requires an authenticated user with privileges to upload files. This has been patched in version 5.4.1, along with all the previously affected versions via a minor release (5.3.3, 5.2.6, 5.1.5, 5.0.9, 4.9.14, 4.8.13, 4.7.17, 4.6.18,…

Affected software

SoftwareAffected versions
WordPressWordPress core · cpe:a:wordpress:wordpress
  • Version 5.4
  • From 5.3 before 5.3.3
  • From 5.2 before 5.2.6
  • From 5.1 before 5.1.5
All 19 release lines
  • From 3.7 before 3.7.33
  • From 3.7 before 5.4.1
  • From 3.8 before 3.8.33
  • From 3.9 before 3.9.31
  • From 4.0 before 4.0.30
  • From 4.1 before 4.1.30
  • From 4.2 before 4.2.27
  • From 4.3 before 4.3.23
  • From 4.4 before 4.4.22
  • From 4.5 before 4.5.21
  • From 4.6 before 4.6.18
  • From 4.7 before 4.7.17
  • From 4.8 before 4.8.13
  • From 4.9 before 4.9.14
  • From 5.0 before 5.0.9
  • From 5.1 before 5.1.5
  • From 5.2 before 5.2.6
  • From 5.3 before 5.3.3
  • Version 5.4

References