Name: CVE-2021-24243: Improper Neutralization of Input During Web Page Generation
Creator: Rapid7
Published: 2021-05-05T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2021-24243, CWE-79, CVSS 5.4, EPSS 0.00703

An AJAX action registered by the WPBakery Page Builder (Visual Composer) Clipboard WordPress plugin before 4.5.6 did not have capability checks nor sanitization, allowing low privilege users (subscriber+) to call it and set XSS payloads, which will be triggered in all backend pages.

CVSS Details

CVSS 3.1 Base Score: 5.4
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Vc Clipboard Plugin	—	Update vc-clipboard plugin to version 4.5.6, or a newer patched version	May 15, 2025	Apr 3, 2021

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CVSS Details

Covered by Rapid7

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