CVE-2024-4439

7.2 HIGH
Published: May 03, 2024 Modified: January 05, 2026
View on NVD

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://core.trac.wordpress.org/changeset/57951/branches/6.4/src/wp-includes/blocks/avatar.php
Source: security@wordfence.com
Patch
https://core.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=57950%40%2F&new=57950%40%2F&sfp_email=&sfph_mail=#file3
Source: security@wordfence.com
Patch
https://wordpress.org/news/2024/04/wordpress-6-5-2-maintenance-and-security-release/
Source: security@wordfence.com
Vendor Advisory
https://www.wordfence.com/blog/2024/04/unauthenticated-stored-cross-site-scripting-vulnerability-patched-in-wordpress-core/
Source: security@wordfence.com
Exploit Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/e363c09a-4381-4b3a-951c-9a0ff5669016?source=cve
Source: security@wordfence.com
Third Party Advisory
https://core.trac.wordpress.org/changeset/57951/branches/6.4/src/wp-includes/blocks/avatar.php
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
https://core.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=57950%40%2F&new=57950%40%2F&sfp_email=&sfph_mail=#file3
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
https://wordpress.org/news/2024/04/wordpress-6-5-2-maintenance-and-security-release/
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.wordfence.com/blog/2024/04/unauthenticated-stored-cross-site-scripting-vulnerability-patched-in-wordpress-core/
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/e363c09a-4381-4b3a-951c-9a0ff5669016?source=cve
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

10 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.2 / 10.0
EPSS (Exploit Probability)
91.8%
100th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-80

Affected Vendors

wordpress

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