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Vulnerability DatabaseCVE-2020-18324

CVE-2020-18324: 
PHP vulnerability analysis and mitigation

Overview

Cross Site Scripting (XSS) vulnerability exists in Subrion CMS 4.2.1 via the q parameter in the Kickstart template. The vulnerability was discovered on June 24, 2019, assigned CVE ID on August 11, 2021, and made public on February 22, 2022 (Github POC).

Technical details

The vulnerability is a Reflected Cross-site Scripting (XSS) that exists in the 'Kickstart' web application template of the Subrion CMS version 4.2.1. The flaw is specifically located in the search component, where the 'q' parameter can be exploited to inject arbitrary JavaScript code. The vulnerability has been assigned a CVSS v3.1 Base Score of 6.1 (MEDIUM) with vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N (NVD).

Impact

The vulnerability allows attackers to execute arbitrary web scripts or HTML via the search functionality. This could potentially lead to theft of sensitive browser data, including cookies, and could enable various client-side attacks against users of the affected Subrion CMS installations (Github POC).

Mitigation and workarounds

The recommended solution is to implement proper input validation and output encoding following the OWASP XSS Prevention Guidelines. Website administrators should consider complying with OWASP's XSS prevention cheat sheet for comprehensive protection against such vulnerabilities (Github POC).

Additional resources

Source: This report was generated using AI

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