CVSS 3.1
6.1 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NCVE-2021-24241
Medium (6.1) in advancedcustomfields advanced custom fields. EPSS 1.4% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 1.4% chance of exploitation in the next 30 days; higher than 72% of CVEs (scores of 2026-10-31)
- CWE
- CWE-79
- Published
- Modified
- Record from
- the NVD, synced
Affected
- advancedcustomfields:advanced_custom_fields
References
- https://github.com/jdordonezn/Reflected-XSS-in-WordPress-for-ACF-PRO-before-5.9.1-plugin/issues/1
- https://wpscan.com/vulnerability/d1e9c995-37bd-4952-b88e-945e02e3c83f
- https://www.advancedcustomfields.com/blog/acf-5-9-1-release/
- https://github.com/jdordonezn/Reflected-XSS-in-WordPress-for-ACF-PRO-before-5.9.1-plugin/issues/1
- https://wpscan.com/vulnerability/d1e9c995-37bd-4952-b88e-945e02e3c83f