CVE-2024-4439: XSS
WordPress Core is vulnerable to Stored Cross-Site Scripting via user display names in the Avatar block in various versions up to 6.5.2 due to insufficient output escaping on the display name. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. In addition, it also makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that have the comment block present and display the comment author's avatar.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
wordpress/coreto a version that resolves this vulnerability.Fixed in 6.5.2
Event History
Frequently Asked Questions
What is the severity of CVE-2024-4439?
CVE-2024-4439 has a medium severity level due to the ability of authenticated attackers to exploit the vulnerability.
How do I fix CVE-2024-4439?
To fix CVE-2024-4439, upgrade WordPress Core to version 6.5.3 or later which patches this vulnerability.
Who is affected by CVE-2024-4439?
CVE-2024-4439 affects authenticated users with contributor-level access and above in versions of WordPress Core up to 6.5.2.
What type of vulnerability is CVE-2024-4439?
CVE-2024-4439 is classified as a Stored Cross-Site Scripting (XSS) vulnerability.
Can CVE-2024-4439 be exploited remotely?
CVE-2024-4439 requires authentication, so it cannot be exploited by unauthenticated remote attackers.