CVE-2021-24241

MEDIUM
Published Apr 22, 20215y ago · Modified Jun 17, 20261w ago
6.1 CVSS 3.1
Medium
Find Similar
Published Apr 22, 2021 5y ago
Last Modified Jun 17, 2026 1w ago

Description

The Advanced Custom Fields Pro WordPress plugin before 5.9.1 did not properly escape the generated update URL when outputting it in an attribute, leading to a reflected Cross-Site Scripting issue in the update settings page.

CVSS Details

Base Score
6.1
Exploitability
2.8
Impact
2.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 1

VendorProductVersionRange
advancedcustomfieldsadvanced_custom_fields* <5.9.1

References 3

  • github.com https://github.com/jdordonezn/Reflected-XSS-in-WordPress-for-ACF-PRO-before-5.9.1-plugin/issues/1
    ExploitThird Party Advisory
  • wpscan.com https://wpscan.com/vulnerability/d1e9c995-37bd-4952-b88e-945e02e3c83f
    ExploitThird Party Advisory
  • advancedcustomfields.com https://www.advancedcustomfields.com/blog/acf-5-9-1-release/
    Release NotesVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.