CVE-2020-35933

MEDIUM EPSS 53.7%

Published Jan 1, 20215y ago · Modified Jun 17, 20262w ago

6.5 CVSS 3.1

Medium

Published Jan 1, 2021 5y ago

Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score

6.5

Exploitability

2.3

Impact

3.7

Vector string

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

Attack Vector Network

Attack Complexity Low

Privileges Required Low

User Interaction Required

Scope Changed

Confidentiality Low

Integrity Low

Availability Low

Threat Intelligence

EPSS Exploit Probability

53.7% percentile

Exploit & Patch Status

Public Exploit Known

No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 1

Vendor	Product	Version	Range
thenewsletterplugin	newsletter	*	<6.8.2

References 1

wordfence.com https://www.wordfence.com/blog/2020/08/newsletter-plugin-vulnerabilities-affect-over-300000-sites/

ExploitThird Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.