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Medium severity · published Sep 6, 2023
CVE-2023-4719
Simple Membership <= 4.3.5 - Reflected Cross-Site Scripting
6.1
CVSS
0.6%
EPSS
No
On KEV
Description
The Simple Membership plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the `list_type` parameter in versions up to, and including, 4.3.5 due to insufficient input sanitization and output escaping. Using this vulnerability, unauthenticated attackers could inject arbitrary web scripts into pages that are being executed if they can successfully trick a user into taking an action, such as clicking a malicious 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)0.6% · higher than 47% 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 4.3.5 · source: vendor, NVD
Affected product
SM
Simple Membership
wpinsider-1
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-4719
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-4719
Patch
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2962730%40simple-membership&new=2962730%40simple-membership&sfp_email=&sfph_mail=
Product
https://wordpress.org/plugins/simple-membership/
Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/e4b10172-7e54-4ff8-9fbb-41d160ce49e4?source=cve
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