Authenticated self-XSS via theme uploads in WordPress
CVE-2020-4049
2.4LOW
Summary
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).
Affected Version(s)
wordpress-develop >= 5.4.0, < 5.4.2 < 5.4.0, 5.4.2
wordpress-develop >= 5.3.0, < 5.3.4 < 5.3.0, 5.3.4
wordpress-develop >= 5.2.0, < 5.2.7 < 5.2.0, 5.2.7
References
CVSS V3.1
Score:
2.4
Severity:
LOW
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
Required
Scope:
Unchanged
Timeline
Vulnerability published
Vulnerability Reserved