CVE-2021-24243 Details
Description
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.
A stored cross-site scripting vulnerability has been identified in the WPBakery Page Builder Clipboard WordPress plugin, affecting versions prior to 4.5.6. The vulnerability arises from an AJAX action that lacked proper capability checks and data sanitization. This oversight allows low-privilege users (subscribers and above) to inject XSS payloads that are executed on all backend pages.
Users are advised to update to WPBakery Page Builder Clipboard version 4.5.6 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://codecanyon.net/item/visual-composer-clipboard/8897711 | CVE | ProductThird Party Advisory |
| https://wpscan.com/vulnerability/3bc0733a-b949-40c9-a5fb-f56814fc4af3 | CVE | ExploitThird Party Advisory |
| https://codecanyon.net/item/visual-composer-clipboard/8897711 | [email protected] | ProductThird Party Advisory |
| https://wpscan.com/vulnerability/3bc0733a-b949-40c9-a5fb-f56814fc4af3 | [email protected] | ExploitThird Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| wpbakery page builder clipboard project wpbakery page builder clipboard | >= 4.5.0, < 4.5.6 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Nov 21, 2024 | CVE Modified | CVE |
| May 14, 2024 | CVE Modified | [email protected] |
| May 13, 2021 | Initial Analysis | [email protected] |