CVE-2021-4420

The Sell Media plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.5.5. This is due to missing or incorrect nonce validation on the sell_media_process() function. This makes it possible for unauthenticated attackers to sell media paypal orders via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

• CWE-352

• https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/Third Party Advisory
• https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/Third Party Advisory
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/Third Party Advisory
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/Third Party Advisory
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/Third Party Advisory
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/Third Party Advisory
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/Third Party Advisory
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2603629%40sell-media&new=2603629%40sell-media&sfp_email=&sfph_mail=Patch
• https://www.wordfence.com/threat-intel/vulnerabilities/id/da4592b6-5e84-4a89-9ade-6cc227740d32?source=cveThird Party Advisory
• https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/Third Party Advisory
• https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/Third Party Advisory
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/Third Party Advisory
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/Third Party Advisory
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/Third Party Advisory
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/Third Party Advisory
• https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/Third Party Advisory
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2603629%40sell-media&new=2603629%40sell-media&sfp_email=&sfph_mail=Patch
• https://www.wordfence.com/threat-intel/vulnerabilities/id/da4592b6-5e84-4a89-9ade-6cc227740d32?source=cveThird Party Advisory

Published

Jul 12, 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.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2021-44194Adobe After Effects versions 22.0 (and earlier) and 18.4.2 (…3.3
• CVE-2021-44195Adobe After Effects versions 22.0 (and earlier) and 18.4.2 (…3.3
• CVE-2021-44196Improper Neutralization of Script-Related HTML Tags in a Web…6.1
• CVE-2021-44197Improper Neutralization of Script-Related HTML Tags in a Web…6.1
• CVE-2021-44198DLL hijacking could lead to local privilege escalation. The …7.8
• CVE-2021-44199DLL hijacking could lead to denial of service. The following…5.5
• CVE-2021-44200Self cross-site scripting (XSS) was possible on devices page…5.4
• CVE-2021-44201Cross-site scripting (XSS) was possible in notification pop-…6.1
• CVE-2021-44202Stored cross-site scripting (XSS) was possible in activity d…5.4
• CVE-2021-44203Stored cross-site scripting (XSS) was possible in protection…5.4
• CVE-2021-44204Local privilege escalation via named pipe due to improper ac…7.8
• CVE-2021-44205Local privilege escalation due to DLL hijacking vulnerabilit…7.3