Vulnerability DatabaseCVE-2023-2635

CVE-2023-2635:
WordPress vulnerability analysis and mitigation

Overview

The Call Now Accessibility Button WordPress plugin before version 1.1 contains a stored Cross-Site Scripting (XSS) vulnerability. The vulnerability was discovered on June 19, 2023, and was assigned CVE-2023-2635. The issue affects the accessibility-help-button plugin and was fixed in version 1.1 (WPScan).

Technical details

The vulnerability stems from improper sanitization and escaping of certain plugin settings. The CVSS v3.1 base score is 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. The vulnerability specifically affects fields in the 'Options' section of the plugin, where the 'Button Text' field is susceptible to XSS payloads (WPScan).

Impact

This vulnerability could allow high-privilege users such as administrators to perform Stored Cross-Site Scripting attacks, even when the unfiltered_html capability is disallowed (for example in multisite setup). This could potentially lead to client-side code execution in users' browsers (WPScan).

Mitigation and workarounds

Users should upgrade to version 1.1 of the Call Now Accessibility Button plugin, which contains the fix for this vulnerability (WPScan).

Additional resources

Source: This report was generated using AI

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