CVE-2026-57378

WordPress Advanced Forms plugin <= 1.9.3.7 - Broken Access Control vulnerability

Missing Authorization vulnerability in Phil Kurth Advanced Forms advanced-forms allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Advanced Forms: from n/a through <= 1.9.3.7.

We have discovered 226 live websites that are affected by CVE-2026-57378.

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Affected Software

Product  Advanced Forms
Category Wordpress Plugins
Vulnerable Domains226 live websites (65% of Advanced Forms install base)
Vulnerable Versions
  • from 0 through 1.9.3.7
Vulnerable Versions Count17 versions ( 94% of all versions)



Details

  • Published - Jul 13, 2026
  • Updated - Jul 13, 2026

Credits

  • Jakub Herman | Patchstack Bug Bounty Program (finder)

Website Distribution by Country

Number of websites using CVE-2026-57378
United States58 websites


Germany39 websites
France22 websites
GB21 websites
Netherlands12 websites
Switzerland11 websites
Italy7 websites
Belgium5 websites
Canada5 websites
Portugal5 websites

Website Distribution by TLD

Number of websites using CVE-2026-57378
.com66 websites
.de33 websites
.co.uk16 websites
.org13 websites
.nl13 websites
.ch12 websites
.fr12 websites
.se6 websites
.be3 websites
.com.au3 websites

Vulnerable Versions

Vulnerable versions are highlighted in red

Websites affected by CVE-2026-57378

Top websites that are affected by CVE-2026-57378. Please click on the "Contact us" link to get more information.
DomainCountryRankContacts
************.pt Portugal**,***
****.fr France***,***
***.***.ph Philippines***,***
*************.com France*,***,***
****.de Germany*,***,***
***************.org France*,***,***
****************.cz Czech Republic*,***,***
*******.com United States*,***,***
**.****.de Germany*,***,***
******************.**.uk United States*,***,***
See full domain list

FAQ

A total of 226 websites have been identified as vulnerable to CVE-2026-57378, based on global website indexing conducted by WebTechSurvey.
The Advanced Forms is affected by the CVE-2026-57378 vulnerability.
Advanced Forms versions up to and including 1.9.3.7 are vulnerable to CVE-2026-57378.