CVE-2026-17522
Medium
Description
The Newsletters WordPress plugin before 4.17 does not perform any nonce or capability check when saving one of its settings screens, and writes every submitted parameter into its own options, allowing attackers to make a logged in administrator overwrite arbitrary Newsletters WordPress plugin before 4.17 settings, including the credential protecting its API, via a Cross-Site Request Forgery attack.
SeverityMedium
CVSS5.4
Exploit probability—
ProductNewsletters
PublishedAug 29, 2026
First seenAug 29, 2026
Weakness typeCWE-352Cross-site request forgery (CSRF)
How to fix
Update
- Newsletters4.17 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Newsletters | v < 4.17 | 4.17 |
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