PT-2021-15784 · WordPress · Advanced Custom Fields Pro

Juan David Ordoñez Noriega · Published 2021-04-22 · Updated 2021-04-29 · CVE-2021-24241

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Advanced Custom Fields Pro WordPress plugin versions prior to 5.9.1

Description The issue is related to a reflected Cross-Site Scripting problem in the update settings page, caused by improper escaping of the generated update URL.

Recommendations For versions prior to 5.9.1, update to version 5.9.1 or later to resolve the issue.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-24241

Affected Products

Advanced Custom Fields Pro

References · 6

• 🔥 https://wpscan.com/vulnerability/d1e9c995-37bd-4952-b88e-945e02e3c83f · Exploit
• 🔥 https://github.com/jdordonezn/Reflected-XSS-in-WordPress-for-ACF-PRO-before-5.9.1-plugin/issues/1 · Exploit
• https://advancedcustomfields.com/blog/acf-5-9-1-release · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-24241 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-24241 · Security Note
• https://t.me/cvenotify/13552 · Telegram Post