What’s Vulnerable › Vulnerabilities
CVE-2026-66596: WordPress Newsletter plugin <= 9.3.3 - Cross Site Scripting (XSS) vulnerability
- Severity: high (CVSS 7.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-19 · updated 2026-08-20
- Weakness: CWE-79
Description
Unauthenticated Cross Site Scripting (XSS) in Newsletter <= 9.3.3 versions.
Affected products
- Stefano Lissa Newsletter: through 9.3.3
References
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