CVE-2020-15299

PoC —

CVSS 3.1

6.1 medium

EPSS

47%p99

Published

Jul 9, 2020 (Jul 9, 2020)

Modified

Jun 17, 2026

Description

A reflected Cross-Site Scripting (XSS) Vulnerability in the KingComposer plugin through 2.9.4 for WordPress allows remote attackers to trick a victim into submitting an install_online_preset AJAX request containing base64-encoded JavaScript (in the kc-online-preset-data POST parameter) that is executed in the victim's browser.

Vendors: king-theme
Products: kingcomposer
Ecosystems: WordPress
Weakness: CWE-79
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (47.0%)

In the news1 stories

KingComposer fixes a reflected XSS impacting 100,000 WordPress sites

Security AffairsJul 10, 10:09 UTC · Jul 10, 2020Vulnerability CVE-2020-15299