CVE-2020-4049CWE-80

Authenticated self-XSS via theme uploads in WordPress

Low · published June 12, 2020

CVSS v3.1
2.4
EPSS
3%
Percentile
84.8
In the wild
Unconfirmed
What it is

In affected versions of WordPress, when uploading themes, the name of the theme folder can be crafted in a way that could lead to JavaScript execution in /wp-admin on the themes page. This does require an admin to upload the theme, and is low severity self-XSS. 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, 4.1.31, 4.0.31, 3.9.32, 3.8.34, 3.7.34).

The record
Technical detail
CVSS v3.1
2.4 · LOW
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.02530 · 84.8th percentile
Weakness
CWE-80 · Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Published
2020-06-12T16:00Z
EPSS history
Timeline
  • 12 JUN 16:00Z
    Authenticated self-XSS via theme uploads in WordPress
    cvelistv5