Page Builder: KingComposer – Free Drag and Drop page builder by King-Theme

Page Builder: KingComposer – Free Drag and Drop page builder by King-Theme has 8 disclosed vulnerabilities in the WordSec catalog, reported between 2019 and 2022; 6 are fixed and 2 remain unpatched as of September 2026. Their average CVSS score is 7.4, and the most serious one scores 8.8 out of 10. Severity breakdown: 0 critical and 4 high. 2020 was the busiest year with 4 disclosures.

The most common weakness is Cross-Site Scripting, behind 5 of the records (63%). Other recurring categories include Improper Access Control, Open Redirect.

6 of the records (75%) have a vendor fix, while 2 remain unpatched. The oldest unresolved one dates back to 2022.

5 independent researchers contributed these findings, most of them (3) reported by Jerome Bruandet.