CVE-2021-24544

Responsive WordPress Slider <= 2.2.0 - Subscriber+ Stored Cross-Site Scripting

Severity Score

5.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The Responsive WordPress Slider WordPress plugin through 2.2.0 does not sanitise and escape some of the Slider options, allowing Cross-Site Scripting payloads to be set in them. Furthermore, as by default any authenticated user is allowed to create Sliders (https://wordpress.org/support/topic/slider-can-be-changed-from-any-user-even-subscriber/, such settings can be changed in the plugin's settings), this would allow user with a role as low as subscriber to perform Cross-Site Scripting attacks against logged in admins viewing the slider list and could lead to privilege escalation by creating a rogue admin account for example.

El plugin Responsive WordPress Slider de WordPress versiones hasta 2.2.0, no sanea y escapa de algunas de las opciones del Slider, permitiendo que se establezcan cargas útiles de tipo Cross-Site Scripting en ellas. Además, como por defecto cualquier usuario autenticado puede crear Sliders (https://wordpress.org/support/topic/slider-can-be-changed-from-any-user-even-subscriber/, esta configuración puede ser cambiada en los ajustes del plugin), esto permitiría a usuarios con un rol tan bajo como el de suscriptor, llevar a cabo ataques de tipo Cross-Site Scripting contra los administradores registrados visualizando la lista de los sliders y podría conllevar a una escalada de privilegios al crear una cuenta de administrador falsa, por ejemplo

*Credits: Abhiyan Chheri . Veshraj Ghimire

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
2021-09-21 CVE Published
2024-08-03 CVE Updated
2024-08-03 First Exploit
2024-12-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

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

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://wpscan.com/vulnerability/4a2dddfc-6ce2-4edd-aaaa-4c130a9356d0	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
Motopress Search vendor "Motopress"		Motopress-slider-lite Search vendor "Motopress" for product "Motopress-slider-lite"				<= 2.2.0 Search vendor "Motopress" for product "Motopress-slider-lite" and version " <= 2.2.0"		wordpress		Affected