CVE-2023-6109

YOP Poll <= 6.5.26 - Race Condition to Vote Manipulation

The YOP Poll plugin for WordPress is vulnerable to a race condition in all versions up to, and including, 6.5.26. This is due to improper restrictions on the add() function. This makes it possible for unauthenticated attackers to place multiple votes on a single poll even when the poll is set to one vote per person.

We have discovered 1,022 live websites that are affected by CVE-2023-6109.

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Affected Software

Product  Yop Poll
Category Wordpress Plugins
Vulnerable Domains1,022 live websites (34% of Yop Poll install base)
Vulnerable Versions
  • from 0 through 6.5.26
Vulnerable Versions Count49 versions ( 75% of all versions)


Common Weakness Enumeration

CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')



Details

  • Published - Nov 14, 2023
  • Updated - Apr 8, 2026

Credits

  • RIN MIYACHI (finder)

Website Distribution by Country

Number of websites using CVE-2023-6109
United States202 websites


Russia190 websites
Germany128 websites
France51 websites
Japan42 websites
Italy32 websites
Netherlands25 websites
GB24 websites
Spain21 websites
Czech Republic20 websites

Website Distribution by TLD

Number of websites using CVE-2023-6109
.com281 websites
.ru180 websites
.de89 websites
.org58 websites
.fr29 websites
.net27 websites
.nl24 websites
.it20 websites
.cz20 websites
.pl15 websites

Vulnerable Versions

Vulnerable versions are highlighted in red

Websites affected by CVE-2023-6109

Top websites that are affected by CVE-2023-6109. Please click on the "Contact us" link to get more information.
DomainCountryRankContacts
***************.com Italy**,***
******************.org Belize**,***
**********.it Italy***,***
*****************.com United States***,***
***.**.th United States***,***
*******.org United States***,***
***********.com United States***,***
*************.de Germany***,***
***********.com United States***,***
**********.net United States***,***
See full domain list

FAQ

CVE-2023-6109 is Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Yop Poll
A total of 1,022 websites have been identified as vulnerable to CVE-2023-6109, based on global website indexing conducted by WebTechSurvey.
The Yop Poll is affected by the CVE-2023-6109 vulnerability.
Yop Poll versions up to and including 6.5.26 are vulnerable to CVE-2023-6109.