CVE-2026-16268
Newsletters < 4.16 - Unauthenticated Server-Side Request Forgery via SNS Bounce Handler
- State
- Published
- Severity
- 8.2 High
- Published
- Aug 6, 2026
- Updated
- Aug 6, 2026
- Reserved
- Jul 20, 2026
Description
The Newsletters WordPress plugin before 4.16 does not authenticate or validate a bounce-processing request before fetching a user-supplied URL on the server side, allowing unauthenticated attackers to make the site issue requests to arbitrary internal or external hosts.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.2 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N | CISA-ADP |
Weaknesses
- CWE-918 Server-Side Request Forgery (SSRF)
Affected Products
| Product | Versions |
|---|---|
NewslettersUnknown |
|
References
- https://wpscan.com/vulnerability/65612dd4-83d8-40c5-8e12-862e9b5f940b/exploitvdb-entrytechnical-description
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