CVE-2020-36751

MEDIUM 4.3

Coupon Creator <= 3.1 - Cross-Site Request Forgery Bypass

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

The Coupon Creator plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.1. This is due to missing or incorrect nonce validation on the save_meta() function. This makes it possible for unauthenticated attackers to save meta fields 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	brianjessee
Product	coupon creator
Published	Oct 20, 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

brianjessee / Coupon Creator

0 < 3.1.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/ab57f010-4fd2-40c2-950f-c03888521c8f?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/2368658/coupon-creator/tags/2.5.2.1/plugin-engine/src/Pngx/Admin/Meta.php

Credits

Jerome Bruandet