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Medium severity · published Jan 11, 2024
CVE-2023-6882
Simple Membership <= 4.3.8 - Reflected Cross-Site Scripting Vulnerability via environment_mode
6.1
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SM
Simple Membership · wpinsider-1
through 4.3.8 · source: vendor, NVD
Affected product
SM
Simple Membership
wpinsider-1
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-6882
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-6882
Patch
https://plugins.trac.wordpress.org/changeset/3010737/simple-membership
Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/366165fe-93e5-49ab-b2e5-1de624f22286?source=cve
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