Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
Required
Privileges Required
High
Attack Vector
Network
0

CVE-2020-4049

Disclosure Date: June 12, 2020 •
CVE-2020-4049 CVSS v3 Base Score: 2.4
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Description

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).

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CVSS V3 Severity and Metrics
Base Score:
2.4 Low
Impact Score:
1.4
Exploitability Score:
0.9
Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
High
User Interaction (UI):
Required
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
Low
Availability (A):
None

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
wordpress-develop >= 5.4.0, < 5.4.2
wordpress-develop >= 5.3.0, < 5.3.4
wordpress-develop >= 5.2.0, < 5.2.7
wordpress-develop >= 5.1.0, < 5.1.6
wordpress-develop >= 5.0.0, < 5.0.10
wordpress-develop >= 4.9.0, < 4.9.15
wordpress-develop >= 4.8.0, < 4.8.14
wordpress-develop >= 4.7.0, < 4.7.18
wordpress-develop >= 4.6.0, < 4.6.19
wordpress-develop >= 4.5.0, < 4.5.22
wordpress-develop >= 4.4.0, < 4.4.23
wordpress-develop >= 4.3.0, < 4.3.24
wordpress-develop >= 4.2.0, < 4.2.28
wordpress-develop >= 4.1.0, < 4.1.31
wordpress-develop >= 4.0.0, < 4.0.31
wordpress-develop >= 3.9.0, < 3.9.32
wordpress-develop >= 3.8.0, < 3.8.34
wordpress-develop >= 3.7.0, < 3.7.34
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown

Vendors

  • debian,
  • fedoraproject,
  • wordpress

Products

  • debian linux 10.0,
  • debian linux 8.0,
  • debian linux 9.0,
  • fedora 31,
  • fedora 32,
  • wordpress
Technical Analysis