CVE-2021-24243

WPBakery Page Builder Clipboard < 4.5.6 - Subscriber+ Stored Cross-Site Scripting (XSS)

Severity Score

5.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Una acción AJAX registrada por el plugin WPBakery Page Builder (Visual Composer) Clipboard WordPress versiones anteriores a 4.5.6, no tenía capacidad de comprobación ni saneamiento, permitiendo a usuarios con privilegios bajos (suscriptor+) llamarlo y configurar cargas útiles XSS, que serán activadas en todas las páginas backend

*Credits: Charles Strader Sweethill

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-14 CVE Reserved
2021-04-03 CVE Published
2023-03-08 EPSS Updated
2024-08-03 CVE Updated
2024-08-03 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

References (2)

URL	Tag	Source
https://codecanyon.net/item/visual-composer-clipboard/8897711	Product

URL	Date	SRC
https://wpscan.com/vulnerability/3bc0733a-b949-40c9-a5fb-f56814fc4af3	2024-08-03

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Wpbakery Page Builder Clipboard Project Search vendor "Wpbakery Page Builder Clipboard Project"		Wpbakery Page Builder Clipboard Search vendor "Wpbakery Page Builder Clipboard Project" for product "Wpbakery Page Builder Clipboard"				>= 4.5.0 < 4.5.6 Search vendor "Wpbakery Page Builder Clipboard Project" for product "Wpbakery Page Builder Clipboard" and version " >= 4.5.0 < 4.5.6"		wordpress		Affected