CVE-2023-4021
CVSS 3.1 Score 5.3 of 10 (medium)
Details
Published Oct 20, 2023
Updated: Nov 7, 2023
Summary
CVE-2023-4021 is a Stored Cross-Site Scripting (XSS) vulnerability affecting the Modern Events Calendar lite plugin for WordPress. This issue stems from insufficient input sanitization and output escaping in versions up to 7.1.0. Attackers, with administrative privileges, can exploit this flaw by injecting arbitrary web scripts using Google API key and Calendar ID. These malicious scripts will execute whenever a user visits an injected page, posing a significant risk for multi-site installations and those with unfiltered_html disabled.
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Affected Products
- Python
Affected Vendors
- Python Software Foundation
Advisories, Assessments, and Mitigations
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