Description
WordPress Plugin Accordion is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks. WordPress Plugin Accordion version 2.2.8 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 2.2.9 or latest
References
https://www.wordfence.com/blog/2020/04/vulnerability-patched-in-accordion-plugin/
https://plugins.svn.wordpress.org/accordions/trunk/readme.txt
Related Vulnerabilities
Magento Improper Control of Generation of Code ('Code Injection') Vulnerability (CVE-2015-1399)
WordPress Plugin Calendar Event Multi View Multiple SQL Injection Vulnerabilities (1.1.7)
WordPress Plugin File Manager Multiple Cross-Site Request Forgery Vulnerabilities (5.0)
WordPress Plugin ULTIMATE VIDEO GALLERY Cross-Site Scripting (1.4)