CVE-2020-35933

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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
mitreCNA
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AC:L/AV:N/A:L/C:L/I:L/PR:L/S:C/UI:R
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 32%
VendorProductVersion
thenewsletterpluginnewsletter
𝑥
< 6.8.2
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://www.wordfence.com/blog/2020/08/newsletter-plugin-vulnerabilities-affect-over-300000-sites/
https://www.wordfence.com/blog/2020/08/newsletter-plugin-vulnerabilities-affect-over-300000-sites/