CVE-2026-16268
Medium
Elevated severity or exploit probability.
CVSS base
8.2
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
EPSS — probability of exploitation (30 days)
0.7%
52.4th percentile
CISA KEV
Not listed
Weakness / dates
CWE-918
Published 2026-08-06 · modified 2026-08-26
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.