What is GHSA-wmvx-23w9-2238?

GHSA-wmvx-23w9-2238 is a security advisory published by GitHub Security Advisories with High severity. Unauthenticated Cross Site Scripting (XSS) in Newsletter \u003c= 9.3.3 versions.

Which CVE IDs does GHSA-wmvx-23w9-2238 cover?

GHSA-wmvx-23w9-2238 covers the following CVE IDs: CVE-2026-66596. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-wmvx-23w9-2238?

GHSA-wmvx-23w9-2238 has a CVSS v3 base score of 7.1, published by GitHub Security Advisories.

GHSA-wmvx-23w9-2238HighCVSS 7.1

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

Vendor

GitHub Security Advisories

Published

August 19, 2026

Last Modified

August 19, 2026

🔗 CVE IDs covered (1)

CVE-2026-66596 →

📋 Description

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

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-66596
https://patchstack.com/database/wordpress/plugin/newsletter/vulnerability/wordpress-newsletter-plugin-9-3-3-cross-site-scripting-xss-vulnerability?_s_id=cve
https://github.com/advisories/GHSA-wmvx-23w9-2238