PT-2024-3429 · WordPress+1 · Wordpress+1

John Blackbourn + 2 · Published 2024-04-09 · Updated 2026-01-05 · CVE-2024-4439

Positive Technologies (AI Summary)

CVSS v3.1

7.2

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions: WordPress Core versions 6.0 through 6.0.7 WordPress Core versions 6.1 through 6.1.5 WordPress Core versions 6.2 through 6.2.4 WordPress Core versions 6.3 through 6.3.3 WordPress Core versions 6.4 through 6.4.3 WordPress Core versions 6.5 through 6.5.2

Description: The issue is related to a stored Cross-Site Scripting (XSS) flaw in the WordPress Core, specifically in the Avatar block. This vulnerability allows attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The flaw is due to insufficient output escaping on the display name. Both unauthenticated and authenticated attackers can exploit this issue under varying circumstances.

Recommendations: For WordPress Core versions 6.0 through 6.0.7, update to a version later than 6.0.7 or disable the Avatar block until a patch is available. For WordPress Core versions 6.1 through 6.1.5, update to a version later than 6.1.5 or disable the Avatar block until a patch is available. For WordPress Core versions 6.2 through 6.2.4, update to a version later than 6.2.4 or disable the Avatar block until a patch is available. For WordPress Core versions 6.3 through 6.3.3, update to a version later than 6.3.3 or disable the Avatar block until a patch is available. For WordPress Core versions 6.4 through 6.4.3, update to a version later than 6.4.3 or disable the Avatar block until a patch is available. For WordPress Core versions 6.5 through 6.5.2, update to a version later than 6.5.2 or disable the Avatar block until a patch is available.

Exploit

Fix

XSS

Weakness Enumeration

CWE-80

CWE-79

Related Identifiers

BDU:2024-03714

BIT-WORDPRESS-2024-4439

BIT-WORDPRESS-MULTISITE-2024-4439

CVE-2024-4439

DSA-6075-1

Affected Products

Debian

Wordpress

References · 38

• 🔥 https://github.com/d0rb/CVE-2024-4439 · Exploit
• 🔥 https://wordfence.com/blog/2024/04/unauthenticated-stored-cross-site-scripting-vulnerability-patched-in-wordpress-core · Exploit
• https://core.trac.wordpress.org/changeset/57951/branches/6.4/src/wp-includes/blocks/avatar.php · Patch
• https://osv.dev/vulnerability/BIT-wordpress-2024-4439 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-4439 · Security Note
• https://bdu.fstec.ru/vul/2024-03714 · Security Note
• https://cve.org/CVERecord?id=CVE-2024-4439 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-4439 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-wordpress-multisite-2024-4439 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-4439 · Vendor Advisory
• https://core.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=57950%40%2F&new=57950%40%2F&sfp_email=&sfph_mail=#file3 · Patch
• https://osv.dev/vulnerability/CVE-2024-4439 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2024-4439 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2024-4439 · Vendor Advisory
• https://wordpress.org/news/2024/04/wordpress-6-5-2-maintenance-and-security-release · Vendor Advisory