CVE-2026-83555
The Email Subscribers & Newsletters WordPress plugin before 5.9.35 does not verify the per-subscriber management token before changing a subscriber's subscription status, allowing unauthenticated users to force-unsubscribe or force-confirm an arbitrary subscriber whose email address they know.
- Published Sep 23, 2026
- CVSS 5.3 medium
- 0.2% chance of exploitation in the next 30 days (EPSS)
- A fix is available