UpHeron
All vulnerabilities

WordPress plugins

CVE-2026-103482

Simple Newsletter Plugin <= 4.3.10 - Unauthenticated Stored Cross-Site Scripting via Subscriber Custom Field via Manage Preferences Form + Campaign Preview noptin_key Pivot

Severity
Medium 5.4
Published
10 Oct 2026
Last changed
11 Oct 2026
Added to UpHeron
3 Nov 2026
Sources
CVE Program

Affected software

SoftwareAffected versions
Newsletter Optin Box (WordPress plugin)WordPress plugins · wp-plugin:newsletter-optin-box
  • Every version up to 4.3.10

References

  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-103482