CVE-2024-3559 MEDIUM

CVE-2024-3559: Custom Field Suite <= 2.6.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via cfs[post_content]

Vendor Mgibbs189
Product Custom Field Suite
Weakness CWE-79 · XSS
Published June 12, 2024
Last update April 8, 2026
View on NVD All CVEs

CVSS base score

6.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

What the vulnerability does

01Description

The Custom Field Suite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the the 'cfs[post_content]' parameter versions up to, and including, 2.6.7 due to insufficient input sanitization and output escaping. 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.

Key dates

02Disclosure timeline

June 12, 2024 CVE published
April 8, 2026 Record updated

Related vulnerabilities

04Related CVE

CVE-2026-6864 CBX 5 Star Rating & Review <= 1.0.7 - Reflected Cross-Site Scripting via 'page' Parameter CVE-2026-27121 Svelte affected by cross-site scripting via spread attributes in Svelte SSR CVE-2019-25397 IPFire 2.21 Core Update 127 Cross-Site Scripting via hosts.cgi CVE-2023-49088 Cacti has incomplete fix for CVE-2023-39515 CVE-2024-13587 Zigaform – Price Calculator & Cost Estimation Form Builder Lite <= 7.4.7 - Authenticated (Contributor+) Stored Cross-Site Scripting