CVE-2020-36700

HIGH

Page Builder: KingComposer <= 2.9.3 - Authenticated Authorization Bypass via Nonce Leak

Title source: llm

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.

References (4)

Core 4

Core References

Exploit

https://blog.nintechnet.com/wordpress-kingcomposer-page-builder-fixed-multiple-critical-vulnerabilities/

Patch

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2320014%40kingcomposer&new=2320014%40kingcomposer&sfp_email=&sfph_mail=

Product

https://wordpress.org/plugins/kingcomposer/#developers

Third Party Advisory

https://www.wordfence.com/threat-intel/vulnerabilities/id/1bdba04e-df4d-4094-877e-611d69e2e25d?source=cve

Scores

CVSS v3 8.8

EPSS 0.0119

EPSS Percentile 63.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-284

Status published

Products (2)

king-theme/page_builder_kingcomposer < 2.9.3

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

Published Jun 07, 2023

Tracked Since Feb 18, 2026