PT-2021-16345 · WordPress · Get Custom Field Values

Francesco Carlucci · Published 2021-12-13 · Updated 2021-12-16 · CVE-2021-24871

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Get Custom Field Values WordPress plugin versions prior to 4.0.1

Description: The issue allows users with a role as low as contributor to perform Cross-Site Scripting attacks due to the plugin not escaping custom fields before outputting them in the page.

Recommendations: For versions prior to 4.0.1, update to version 4.0.1 or later to resolve the issue. As a temporary workaround, consider restricting the role of users who can access custom fields to prevent potential Cross-Site Scripting attacks.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-24871

Affected Products

Get Custom Field Values

References · 4

• 🔥 https://wpscan.com/vulnerability/28007c80-dc14-4987-a52c-f2a05cfe5905 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-24871 · Security Note
• https://osv.dev/vulnerability/CVE-2021-24871 · Vendor Advisory
• https://t.me/cibsecurity/33804 · Telegram Post