CVE-2022-2239: 
WordPress vulnerability analysis and mitigation

The Request a Quote WordPress plugin before version 2.3.9 contains a stored Cross-Site Scripting (XSS) vulnerability identified as CVE-2022-2239. The vulnerability was discovered and publicly disclosed on June 28, 2022. The issue affects the plugin's settings functionality, specifically impacting installations where high-privilege users such as administrators are operating without the unfiltered_html capability (WPScan, CVE Mitre).

The vulnerability stems from improper sanitization and escaping of certain plugin settings. This security flaw allows privileged users to inject malicious scripts into specific plugin settings. The vulnerability has been assigned a CVSS score of 3.4 (low severity). The issue specifically affects the Misc > No Access Message setting of the plugin, where malicious JavaScript code can be injected (WPScan).

When exploited, this vulnerability allows the execution of arbitrary JavaScript code in the context of other users' browsers when they access a quote without sufficient privileges. This could potentially lead to theft of sensitive information, session hijacking, or other client-side attacks against users viewing the affected pages (WPScan).

The vulnerability has been fixed in version 2.3.9 of the Request a Quote plugin. Users are advised to update to this version or later to mitigate the risk. No alternative workarounds have been publicly documented (WPScan).