CVE-2021-4420

MEDIUM 4.3CVE-2021-4420 · Published 12/07/2023 · updated 17/06/2026

In short

CVE-2021-4420 is a MEDIUM (CVSS 4.3) vulnerability affecting sell media (graphpaperpress).
Chance of exploitation in the next 30 days (EPSS): 0.39%, higher than 33.7% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
sell media graphpaperpress	`≤ 2.5.5`	No fix yet

Description

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.

References

blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks · Third Party Advisory
blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks · Third Party Advisory
blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1 · Third Party Advisory
blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2 · Third Party Advisory
blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3 · Third Party Advisory
blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4 · Third Party Advisory
blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5 · Third Party Advisory
plugins.trac.wordpress.org/changeset · Patch
wordfence.com/threat-intel/vulnerabilities/id/da4592b6-5e84-4a89-9ade-6cc227740d32 · Third Party Advisory

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