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CVE-2020-36700: 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.

high Affects kingcomposer (WordPress plugin). Feed 2026.10.29.4, updated 2026-10-29; published ; advisory modified .

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.

Package
kingcomposer (WordPress plugin) WordPress
Affected versions
<=2.9.3
Fixed in
no fix recorded
Severity
high  CVSS 8.8
Exploitation
not on CISA KEV · EPSS 1% (67.5th percentile)
Published
2023-06-07
Source
nvd

References

CWE-284
NVD recordkingcomposer (WordPress plugin) advisories

Am I affected?

Find out in one command. phpwarden checks your WordPress install against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# PHP projects (recommended)
composer require --dev phpwarden/phpwarden
# then
vendor/bin/phpwarden wordpress /var/www/html

# or, without Composer
pipx install phpwarden   &&   phpwarden wordpress /var/www/html

Or keep it checked automatically with the GitHub Action or a nightly cron; see WordPress docs.

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