6.5
Medium
CVE-2026-16264 The Newsletters WordPress plugin before 4.18.1 does not perform an ownership check on some of its subscriber…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Newsletters 4.18 | earliest → < 4.18.1 | 4.18.1 |
Other CVEs of Newsletters
The 8 CVEs of Newsletters →
CVE-2026-17522
The Newsletters WordPress plugin before 4.17 does not perform any nonce or capability check when saving one of its…
5.4
Medium
CVE-2026-17520
The Newsletters WordPress plugin before 4.17 does not generate its API key using a sufficiently random source,…
4.8
Medium
CVE-2026-16269
The Newsletters WordPress plugin before 4.16 does not strictly compare its API authentication key, allowing…
4.8
Medium
CVE-2026-16267
The Newsletters WordPress plugin before 4.16 does not restrict the classes allowed when unserialising a value taken from…
8.1
High