Vulnerability Details CVE-2021-24208
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 61.1%
CVSS Severity
CVSS v3 Score 5.4
CVSS v2 Score 3.5
References
Products affected by CVE-2021-24208
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cpe:2.3:a:themeum:wp_page_builder:-
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cpe:2.3:a:themeum:wp_page_builder:1.0.0
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cpe:2.3:a:themeum:wp_page_builder:1.0.1
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cpe:2.3:a:themeum:wp_page_builder:1.0.2
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cpe:2.3:a:themeum:wp_page_builder:1.0.3
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cpe:2.3:a:themeum:wp_page_builder:1.0.4
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cpe:2.3:a:themeum:wp_page_builder:1.0.5
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cpe:2.3:a:themeum:wp_page_builder:1.0.6
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cpe:2.3:a:themeum:wp_page_builder:1.0.7
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cpe:2.3:a:themeum:wp_page_builder:1.0.8
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cpe:2.3:a:themeum:wp_page_builder:1.0.9
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cpe:2.3:a:themeum:wp_page_builder:1.1.0
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cpe:2.3:a:themeum:wp_page_builder:1.2.0
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cpe:2.3:a:themeum:wp_page_builder:1.2.1
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cpe:2.3:a:themeum:wp_page_builder:1.2.2
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cpe:2.3:a:themeum:wp_page_builder:1.2.3