PT-2024-26562 · WordPress · Custom Field Suite

Jack Taylor · Published 2024-06-12 · Updated 2024-06-13 · CVE-2024-3559

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Custom Field Suite plugin for WordPress versions up to, and including, 2.6.7

Description The issue is related to Stored Cross-Site Scripting via the cfs[post content] parameter due to insufficient input sanitization and output escaping. This allows authenticated attackers with contributor-level access and above to inject arbitrary web scripts in pages, which will execute when a user accesses an injected page.

Recommendations For versions up to, and including, 2.6.7, update to a version that addresses the insufficient input sanitization and output escaping issue to prevent Stored Cross-Site Scripting attacks. As a temporary workaround, consider restricting access to the cfs[post content] parameter to minimize the risk of exploitation.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2024-3559

Affected Products

Custom Field Suite

References · 6

• https://osv.dev/vulnerability/CVE-2024-3559 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-3559 · Security Note
• https://plugins.trac.wordpress.org/browser/custom-field-suite/trunk/includes/form.php#L69 · Note
• https://plugins.trac.wordpress.org/browser/custom-field-suite/trunk/includes/api.php#L282 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/56d8af3b-6c00-49ed-872a-64f7bebb470b?source=cve · Note
• https://t.me/cvenotify/82948 · Telegram Post