CVE-2020-35933

Newsletter <= 6.8.1 - Reflected Cross-Site Scripting

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A Reflected Authenticated Cross-Site Scripting (XSS) vulnerability in the Newsletter plugin before 6.8.2 for WordPress allows remote attackers to trick a victim into submitting a tnpc_render AJAX request containing either JavaScript in an options parameter, or a base64-encoded JSON string containing JavaScript in the encoded_options parameter.

Una vulnerabilidad de tipo Cross-Site Scripting (XSS) Autenticado Reflejado en el plugin Newsletter versiones anteriores a 6.8.2 para WordPress permite a atacantes remotos engañar a una víctima para enviar una petición AJAX de tnpc_render que contenga JavaScript en un parámetro de opciones o una cadena JSON codificada en base64 que contenga JavaScript en el parámetro encoded_options.

*Credits: Ram

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

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

2020-08-03 CVE Published
2021-01-01 CVE Reserved
2023-07-08 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- 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://www.wordfence.com/blog/2020/08/newsletter-plugin-vulnerabilities-affect-over-300000-sites	2024-08-04

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
Thenewsletterplugin Search vendor "Thenewsletterplugin"		Newsletter Search vendor "Thenewsletterplugin" for product "Newsletter"				< 6.8.2 Search vendor "Thenewsletterplugin" for product "Newsletter" and version " < 6.8.2"		wordpress		Affected