CVE-2021-24206

Elementor < 3.1.2 - Authenticated Stored Cross-Site Scripting (XSS) in Image Box Widget

Severity Score

5.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In the Elementor Website Builder WordPress plugin before 3.1.4, the image box widget (includes/widgets/image-box.php) accepts a ‘title_size’ parameter. Although the element control lists a fixed set of possible html tags, it is possible for a user with Contributor or above permissions to send a modified ‘save_builder’ request containing JavaScript in the ‘title_size’ parameter, which is not filtered and is output without escaping. This JavaScript will then be executed when the saved page is viewed or previewed.

En el plugin de WordPress Elementor Website Builder versiones anteriores a 3.1.4, el widget de cuadro de imagen (el archivo includes/widgets/image-box.php) acepta un parámetro "title_size". Aunque el control de elementos enumera un conjunto fijo de posibles etiquetas html, es posible que un usuario con permisos de Colaborador o superiores envíe una petición "save_builder" modificada que contenga JavaScript en el parámetro "title_size", que no se filtra y se genera sin escapar . Este JavaScript será ejecutado cuando la página guardada es visualizada u obtenga una vista previa

*Credits: Ramuel Gall

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
2021-03-17 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

URL	Date	SRC
https://wpscan.com/vulnerability/2f66efd9-7d55-4f33-9109-3cb583a0c309	2024-08-03
https://www.wordfence.com/blog/2021/03/cross-site-scripting-vulnerabilities-in-elementor-impact-over-7-million-sites	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
Elementor Search vendor "Elementor"		Website Builder Search vendor "Elementor" for product "Website Builder"				< 3.1.4 Search vendor "Elementor" for product "Website Builder" and version " < 3.1.4"		wordpress		Affected