Description
WordPress Plugin Really Simple Gallery 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 Really Simple Gallery version 1.4 is vulnerable; prior versions may also be affected.
Remediation
Edit the source code to ensure that input is properly sanitised or disable the plugin until a fix is available
References
Related Vulnerabilities
WordPress Plugin Broken Link Manager Cross-Site Scripting (0.5.5)
WebLogic CVE-2017-10271 Vulnerability (CVE-2017-10271)
WordPress Plugin Advanced Text Widget 'page' Parameter Cross-Site Scripting (2.0.0)
WordPress Plugin TagNinja 'id' Parameter Cross-Site Scripting (1.0)
WordPress Plugin Widgets for WooCommerce Products on Elementor Cross-Site Scripting (1.0.7)