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CVE-2021-24208

MEDIUM 5.4 CVSS 3.1
Published
April 5, 2021
Last modified
June 17, 2026
NVD status
Modified
Reported by
contact@wpscan.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Description

The editor of the WP Page Builder WordPress plugin before 1.2.4 allows lower-privileged users to insert unfiltered HTML, including JavaScript, into pages via the “Raw HTML” widget and the “Custom HTML” widgets (though the custom HTML widget requires sending a crafted request - it appears that this widget uses some form of client side validation but not server side validation), all of which are added via the “page_builder_data” parameter when performing the “wppb_page_save” AJAX action. It is also possible to insert malicious JavaScript via the “wppb_page_css” parameter (this can be done by closing out the style tag and opening a script tag) when performing the “wppb_page_save” AJAX action.

Affected products and versions

  • Unknown WP Page Builder — From 1.2.4 (including) to 1.2.4 (excluding)
  • themeum wp_page_builder — Before 1.2.4

References

  • wpscan.com https://wpscan.com/vulnerability/c20e243d-b0de-4ae5-9a0d-b9d02c9b8141 Exploit, Third Party Advisory
  • www.themeum.com https://www.themeum.com/wp-page-builder-updated-v1-2-4/ Patch, Vendor Advisory
  • nvd.nist.gov Official NVD record