CVE-2026-16268CWE-918ssrf

CVE-2026-16268

High · published August 6, 2026

CVSS v3.1
8.2
EPSS
1%
Percentile
53.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00733 · 53.8th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-08-06T11:16Z
References (1)
https://wpscan.com/vulnerability/65612dd4-83d8-40c5-8e12-862e9b5f940b/ · [email protected]
EPSS history
Timeline
  • 06 AUG 06:00Z
    Newsletters < 4.16 - Unauthenticated Server-Side Request Forgery via SNS Bounce Handler
    cvelistv5