CVE-2026-83543

Received Received - Intake

Stored SSRF in Greenshift WordPress Plugin

Publication date: 2026-09-05

Last updated on: 2026-09-06

Assigner: WPScan

Description

The Greenshift WordPress plugin before 13.2.0 does not validate a user-supplied URL before fetching it server-side, allowing users with contributor-level access and above to make the server issue requests to arbitrary hosts and read the response.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-09-05

Last Modified

2026-09-06

Generated

2026-09-25

AI Q&A

2026-09-05

EPSS Evaluated

2026-09-24

NVD

CVE-2026-83543

EUVD

EUVD-2026-71858

Affected Vendors & Products

Vendor	Product	Version / Range
greenshift	wordpress_plugin	to 13.2.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-918	The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

Attack-Flow Graph

Executive Summary

The Greenshift WordPress plugin before version 13.2.0 has a Server-Side Request Forgery (SSRF) vulnerability. Users with contributor-level access or higher can supply a URL that the server fetches without proper validation. This allows them to make requests to arbitrary hosts and read the responses.

Detection Guidance

Check if the Greenshift WordPress plugin version is below 13.2.0 by inspecting the plugin files or WordPress admin panel. Look for unauthorized server requests to external hosts in server logs or network traffic.

Impact Analysis

An attacker could exploit this to access internal systems, exfiltrate sensitive data, or perform unauthorized actions on behalf of the server. It may also lead to further attacks if internal services are exposed.

Compliance Impact

This vulnerability could lead to unauthorized data access or disclosure, violating GDPR's data protection principles or HIPAA's security requirements. Compliance may be compromised if sensitive data is exposed.

Mitigation Strategies

Update the Greenshift plugin to version 13.2.0 or later immediately. If updating is not possible, restrict contributor-level and higher user roles to prevent them from exploiting the SSRF flaw.

Hi! I’m here to help you understand CVE-2026-83543. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70