CVE-2026-84021mediumCWE-79

CVE-2026-84021: medium-severity vulnerability in Bold Page Builder

Bold Page Builder < 5.9.8 - Contributor+ Stored XSS via bt_bb_button/bt_bb_headline/bt_bb_icon URL

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33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 6.8epss 0.4%
The Bold Page Builder WordPress plugin before 5.9.8 does not properly validate a link URL before outputting it in an HTML attribute, relying on a filter that can be evaded, allowing users with the Contributor role and above to inject arbitrary web scripts that execute when a user clicks the affected link.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Affected products
Unknown · Bold Page Builder
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — Bold Page Builder

In the same product, most dangerous first.

CVE-2021-24579—Bold Page Builder < 3.1.6 - PHP Object InjectionEPSS 8.2%CVE-2022-2089—Bold Page Builder < 4.3.3 - Admin+ Stored Cross-Site ScriptingEPSS 1.1%CVE-2026-84028MEDIUMBold Page Builder < 5.9.9 - Contributor+ Stored XSS via Slider Elements' additional_settingsEPSS 0.4%CVE-2026-84022MEDIUMBold Page Builder < 5.9.8 - Contributor+ Stored XSS via Multiple Shortcode Element AttributesEPSS 0.4%