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CVE-2026-66596

HighCVSS 7.1/10Last modified Aug 20, 2026

Description

Unauthenticated Cross Site Scripting (XSS) in Newsletter <= 9.3.3 versions.

Metrics

CVSS 3.1 7.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Weakness enumeration

Affected software

Vendor	Product	Versions
Stefano Lissa	Newsletter	<= 9.3.3

References

https://patchstack.com/database/wordpress/plugin/newsletter/vulnerability/wordpress-newsletter-plugin-9-3-3-cross-site-scripting-xss-vulnerability?_s_id=cve

Timeline

Published: Aug 19, 2026
Last modified: Aug 20, 2026
NVD status: Deferred

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CVE-2026-66596: High severity, CVSS 7.1 | Vulnix