CVE-2026-16268 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00136.

Exploitation poc

Automatable no

Technical Impact partial

No data.

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors	Products

References

Link	Providers
https://wpscan.com/vulnerability/65612dd4-83d8-40c5-8e12-862e9b5f940b/

History

Thu, 06 Aug 2026 15:30:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-918
Metrics		cvssV3_1 `{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Thu, 06 Aug 2026 06:30:00 +0000

Type	Values Removed	Values Added
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.
Title		Newsletters < 4.16 - Unauthenticated Server-Side Request Forgery via SNS Bounce Handler
References		https://wpscan.com/vulnerability/65612dd4-83d8-40c5-8e12-862e9b5f940b/

MITRE

Status: PUBLISHED

Assigner: WPScan

Published: 2026-08-06T06:00:09.742Z

Updated: 2026-08-06T14:08:39.333Z

Reserved: 2026-07-20T09:09:39.417Z

Link: CVE-2026-16268

Vulnrichment

Updated: 2026-08-06T14:08:35.915Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-08-06T16:45:07Z

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