CVE-2026-66455

WordPress ReactPress plugin <= 3.4.0 - Broken Access Control vulnerability

Subscriber Broken Access Control in ReactPress <= 3.4.0 versions.

We have discovered 603 live websites that are affected by CVE-2026-66455.

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Affected Software

Product  Reactpress
Category Wordpress Plugins
Vulnerable Domains603 live websites (100% of Reactpress install base)
Vulnerable Versions
  • from 0 through 3.4
Vulnerable Versions Count7 versions ( 100% of all versions)


Common Weakness Enumeration

CWE-862 Missing Authorization



Details

  • Published - Aug 13, 2026
  • Updated - Aug 13, 2026

Credits

  • Nguyen Duc Canh (canhnguyen26) | Patchstack Bug Bounty Program (finder)

Website Distribution by Country

Number of websites using CVE-2026-66455
United States247 websites


Vietnam55 websites
Germany52 websites
Italy24 websites
Canada20 websites
GB20 websites
Poland15 websites
Cyprus14 websites
Switzerland13 websites
Netherlands10 websites

Website Distribution by TLD

Number of websites using CVE-2026-66455
.com277 websites
.org54 websites
.de24 websites
.io22 websites
.net16 websites
.ch14 websites
.it11 websites
.ca11 websites
.co.uk11 websites
.nl10 websites

Vulnerable Versions

Vulnerable versions are highlighted in red

Websites affected by CVE-2026-66455

Top websites that are affected by CVE-2026-66455. Please click on the "Contact us" link to get more information.
DomainCountryRankContacts
********.*********.edu United States**,***
**********.com United States**,***
*****************.com United States***,***
******.com Indonesia***,***
***.com United States***,***
***********.com Canada***,***
**********.com Germany***,***
*********.com United States***,***
*********.org Belgium***,***
*************.de Germany***,***
See full domain list

FAQ

CVE-2026-66455 is Missing Authorization in Reactpress
A total of 603 websites have been identified as vulnerable to CVE-2026-66455, based on global website indexing conducted by WebTechSurvey.
The Reactpress is affected by the CVE-2026-66455 vulnerability.
Reactpress versions up to and including 3.4 are vulnerable to CVE-2026-66455.