CVE-2026-16268
Last modified
CVE-2026-16268 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. 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.. EPSS estimates a 0.14% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Unknown | Newsletters | < 4.16 |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
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