What’s Vulnerable › Vulnerabilities

CVE-2020-36700: Page Builder: KingComposer < 2.9.4 - Authorization Bypass due to Improper Access Control

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-06-07 · updated 2026-06-17
• Weakness: CWE-284

Description

The Page Builder: KingComposer plugin for WordPress is vulnerable to authorization bypass in versions up to, and including, 2.9.3. This is due to a security nonce being leaked in the '/wp-admin/index.php' page. This makes it possible for authenticated attackers to change arbitrary WordPress options, delete arbitrary files/folders, and inject arbitrary content.

Affected products

• kingthemes Page Builder: KingComposer – Free Drag and Drop page builder by King-Theme: through 2.9.3

References

• https://blog.nintechnet.com/wordpress-kingcomposer-page-builder-fixed-multiple-critical-vulnerabilities/
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2320014%40kingcomposer&new=2320014%40kingcomposer&sfp_email=&sfph_mail=
• https://wordpress.org/plugins/kingcomposer/#developers
• https://www.wordfence.com/threat-intel/vulnerabilities/id/1bdba04e-df4d-4094-877e-611d69e2e25d?source=cve
• https://blog.nintechnet.com/wordpress-kingcomposer-page-builder-fixed-multiple-critical-vulnerabilities/
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2320014%40kingcomposer&new=2320014%40kingcomposer&sfp_email=&sfph_mail=
• https://wordpress.org/plugins/kingcomposer/#developers
• https://www.wordfence.com/threat-intel/vulnerabilities/id/1bdba04e-df4d-4094-877e-611d69e2e25d?source=cve

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