CVE-2023-6882

Simple Membership <= 4.3.8 - Reflected Cross-Site Scripting Vulnerability via environment_mode

Published Jan 11, 2024 CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed
Description
The Simple Membership plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘environment_mode’ parameter in all versions up to, and including, 4.3.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-59086 The Simple Membership plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘environment_mode’ parameter in all versions up to, and including, 4.3.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
History
Type Values Removed Values Added
Title Simple Membership <= 4.3.8 - Reflected Cross-Site Scripting Vulnerability via environment_mode
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Wordfence
Published
Updated
Apr 8, 2026, 4:46 PM
Reserved
Dec 16, 2023, 12:20 AM
Status
Modified
Published
Jan 11, 2024, 9:15 AM
Modified
Jun 17, 2026, 6:51 AM