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CVE-2023-6165: restrict usernames emails characters vulnerability
CVE-2023-6165: medium vulnerability affecting restrict usernames emails characters. Check CVSS, KEV status, business impact and recommended administrator.
- CVSS
- 4.8 MEDIUM
- EPSS
- 33.12%
- Known exploited
- not in KEV
- Product
- restrict usernames emails characters
What is known
The Restrict Usernames Emails Characters WordPress plugin before 3.1.4 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Cross-Site Scripting attacks even when unfiltered_html is disallowed
Business impact
Successful exploitation of CVE-2023-6165, a medium vulnerability (CVSS 4.8) affecting restrict usernames emails characters, may affect the confidentiality, integrity or availability of the vulnerable environment. The exact impact depends on the installed version, exposed interfaces and deployment configuration.
Recommended administrator action
Confirm whether restrict usernames emails characters is present and compare installed versions with the vendor advisory and NVD record. Apply the vendor patch or documented mitigation; until remediation is complete, reduce exposure of affected interfaces, review relevant logs and monitor for indicators of exploitation. DataHouse can support version verification, managed patching, network exposure reduction, log review and backup validation for dedicated, cloud and colocated environments.