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Vulnerability DatabaseCVE-2021-24640
CVE-2021-24640:
WordPress vulnerability analysis and mitigation
Overview
CVE-2021-24640 is a Stored Cross-Site Scripting (XSS) vulnerability affecting the WordPress plugin Gutenslider versions below 5.2.0. The vulnerability was discovered by researcher apple502j and was publicly disclosed on August 18, 2021 (WPScan).
Technical details
The vulnerability exists because the plugin fails to properly escape the minWidth attribute of a Gutenburg block. This security flaw has been assigned a CVSS score of 6.8 (medium severity) and is classified under CWE-79. The vulnerability falls under the OWASP Top 10 category A7: Cross-Site Scripting (XSS) (WPScan).
Impact
This vulnerability could allow users with privileges as low as contributor level to perform Cross-Site Scripting attacks on the affected WordPress installations. The XSS payload can be triggered without user interaction when using specific themes like TwentyTwentyOne (WPScan).
Mitigation and workarounds
The vulnerability has been fixed in Gutenslider version 5.2.0. Users are advised to update to this version or later to mitigate the security risk (WPScan).
Additional resources
Source: This report was generated using AI
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