CVE-2026-16264
Medium
Description
The Newsletters WordPress plugin before 4.18.1 does not perform an ownership check on some of its subscriber management actions, and issues a management session to unauthenticated visitors on request, allowing attackers to read any subscriber's personal data and overwrite any subscriber's record including their email address.
SeverityMedium
CVSS6.5
Exploit probability—
ProductNewsletters
PublishedSep 23, 2026
First seenSep 23, 2026
How to fix
Update
- Newsletters4.18.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Newsletters | v < 4.18.1 | 4.18.1 |
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