Description
WordPress Plugin Simple Image 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 Simple Image Gallery version 1.0.6 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
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39313
https://wordpress.org/plugins/simple-responsive-image-gallery/#description
Related Vulnerabilities
WordPress Plugin Hustle-Pop-Ups, Slide-ins and Email Opt-ins Cross-Site Scripting (4.7.0.5)
WordPress Plugin UpdraftPlus WordPress Backup Privilege Escalation (1.23.2)
SharePoint CVE-2020-17060 Vulnerability (CVE-2020-17060)
Payara Files or Directories Accessible to External Parties Vulnerability (CVE-2022-45129)
WordPress Plugin WP Live Chat Support Pro Arbitrary File Upload (8.0.06)