CVE-2021-36841

YITH Maintenance Mode (WordPress plugin) <= 1.3.7 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability.

Severity Score

5.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Authenticated Stored Cross-Site Scripting (XSS) vulnerability in YITH Maintenance Mode (WordPress plugin) versions <= 1.3.7, vulnerable parameter &yith_maintenance_newsletter_submit_label. Possible even when unfiltered HTML is disallowed by WordPress configuration.

Una vulnerabilidad de tipo Cross-Site Scripting (XSS) Almacenado y Autenticado en YITH Maintenance Mode (plugin de WordPress) versiones anteriores a 1.3.7 incluyéndola, parámetro vulnerable &yith_maintenance_newsletter_submit_label. Posible incluso cuando el HTML sin filtrar no está permitido por la configuración de WordPress

*Credits: Original researcher - Asif Nawaz Minhas (Patchstack Red Team)

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

High

User Interaction

Required

Scope

Changed

Confidentiality

High

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

2021-07-19 CVE Reserved
2021-09-15 CVE Published
2023-04-20 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

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

CAPEC

References (2)

URL	Tag	Source
https://patchstack.com/database/vulnerability/yith-maintenance-mode/wordpress-yith-maintenance-mode-plugin-1-3-7-authenticated-stored-cross-site-scripting-xss-vulnerability	Third Party Advisory
https://wordpress.org/plugins/yith-maintenance-mode/#developers	Product

URL	Date	SRC

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
Yithemes Search vendor "Yithemes"		Yith Maintenance Mode Search vendor "Yithemes" for product "Yith Maintenance Mode"				<= 1.3.7 Search vendor "Yithemes" for product "Yith Maintenance Mode" and version " <= 1.3.7"		wordpress		Affected