CWE-837


Improper Enforcement of a Single, Unique Action

The product requires that an actor should only be able to perform an action once, or to have only one unique action, but the product does not enforce or improperly enforces this restriction.

We have discovered 1,463 live websites that are affected by CWE-837.

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CVEs

  • Count - 1



Website Distribution by Country

Number of websites using CWE-837
United States552 websites


Germany377 websites
Poland130 websites
France76 websites
GB37 websites
Turkey25 websites
Netherlands23 websites
Italy22 websites
Iran18 websites
Russia18 websites

Website Distribution by TLD

Number of websites using CWE-837
.com535 websites
.de268 websites
.net152 websites
.org91 websites
.pl87 websites
.eu32 websites
.ru23 websites
.it18 websites
.info13 websites
.fr13 websites

Newest CVEs

List of the most recent CVEs that are part of CWE-837
DiscoveredCVEDescriptionWebsites
Aug, 2026CVE-2026-45734 MyBB: Default CAPTCHA missing invalidation1,463

The most widespread CVEs

List of the most common CVEs that are part of CWE-837
DiscoveredCVEDescriptionWebsites
Aug, 2026CVE-2026-45734 MyBB: Default CAPTCHA missing invalidation1,463

Websites affected by CWE-837

Top websites that are affected by CWE-837. Please click on the "Contact us" link to get more information.
DomainCountryRankContacts
*********.****.com United States**,***
******.******.org United States**,***
*****.****.tv United States***,***
********.pl Poland***,***
*************.org Laos***,***
*************.net United States***,***
************.pl Poland***,***
********.net United States***,***
**********.org United States***,***
*******.com United States***,***
See full domain list