CVE-2021-4420

MEDIUM 4.3

Sell Media <= 2.5.5 - Cross-Site Request Forgery Bypass

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

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	CWE-352
Vendor	endortrails
Product	sell media
Published	Jul 12, 2023
Last Updated	Apr 8, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

endortrails / Sell Media

0 ≤ 2.5.5

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

Jerome Bruandet