CVE-2023-5621

The Thumbnail Slider With Lightbox plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Image Title field in versions up to, and including, 1.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

• CWE-79
• CWE-79

• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=1263536%40wp-responsive-slider-with-lightbox&new=1263536%40wp-responsive-slider-with-lightbox&sfp_email=&sfph_mail=Product
• https://wordpress.org/plugins/wp-responsive-slider-with-lightbox/Product
• https://www.wordfence.com/threat-intel/vulnerabilities/id/547c425d-8b0f-4e65-8b8a-c3a3059301fe?source=cveThird Party Advisory
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=1263536%40wp-responsive-slider-with-lightbox&new=1263536%40wp-responsive-slider-with-lightbox&sfp_email=&sfph_mail=Product
• https://wordpress.org/plugins/wp-responsive-slider-with-lightbox/Product
• https://www.wordfence.com/threat-intel/vulnerabilities/id/547c425d-8b0f-4e65-8b8a-c3a3059301fe?source=cveThird Party Advisory

Published

Oct 18, 2023

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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