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Vulnerability DatabaseCVE-2023-23794

CVE-2023-23794: 
WordPress vulnerability analysis and mitigation

Overview

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability affects the Alex Moss Semalt Blocker WordPress plugin versions 1.1.3 and below. The vulnerability was discovered on January 10, 2023, and was publicly disclosed on April 18, 2023 (Patchstack).

Technical details

The vulnerability occurs because the plugin does not properly sanitize and escape some of its settings, which could allow high privilege users such as administrators to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed, such as in multisite setups. The vulnerability has been assigned a CVSS v3.1 base score of 4.8 (MEDIUM) with the vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N according to NVD, while Patchstack rates it at 5.9 (MEDIUM) (NVD).

Impact

This vulnerability could allow malicious actors with administrative access to inject malicious scripts, including redirects, advertisements, and other HTML payloads into the website, which would be executed when guests visit the site (Patchstack).

Mitigation and workarounds

Currently, there is no known official fix available for this vulnerability (Patchstack).

Additional resources

Source: This report was generated using AI

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