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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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Email Subscribers Plugin | — | Update email-subscribers plugin to version 5.9.35, or a newer patched version | Oct 30, 2026 | Sep 21, 2026 |
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