CVE-2026-66629

WordPress Kirki plugin <= 6.2.3 - Cross Site Scripting (XSS) vulnerability

Unauthenticated Cross Site Scripting (XSS) in Kirki <= 6.2.3 versions.

We have discovered 3,093 live websites that are affected by CVE-2026-66629.

Run a Free Instant Scan



Affected Software

Product  Kirki Customizer Framework
Category Wordpress Plugins
Vulnerable Domains3,093 live websites (100% of Kirki Customizer Framework install base)
Vulnerable Versions
  • from 0 through 6.2.3
Vulnerable Versions Count20 versions ( 100% of all versions)


Common Weakness Enumeration

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')



Details

  • Published - Aug 18, 2026
  • Updated - Aug 18, 2026

Credits

  • daroo | Patchstack Bug Bounty Program (finder)

Website Distribution by Country

Number of websites using CVE-2026-66629
United States737 websites


Germany338 websites
France246 websites
Italy221 websites
Poland150 websites
GB113 websites
Spain100 websites
Russia85 websites
Netherlands71 websites
India60 websites

Website Distribution by TLD

Number of websites using CVE-2026-66629
.com1,413 websites
.de188 websites
.it129 websites
.pl110 websites
.fr93 websites
.org86 websites
.ru66 websites
.co.uk54 websites
.nl53 websites
.net47 websites

Vulnerable Versions

Vulnerable versions are highlighted in red

Websites affected by CVE-2026-66629

Top websites that are affected by CVE-2026-66629. Please click on the "Contact us" link to get more information.
DomainCountryRankContacts
*******.com United States**,***
*******.com United States**,***
********.**.za South Africa***,***
********.nl Netherlands***,***
**********.be Belgium***,***
*******************.pl Poland***,***
**********.com China***,***
************************.org United States***,***
***********************.xn--p1ai Russia***,***
************.com Cyprus***,***
See full domain list

FAQ

CVE-2026-66629 is Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Kirki Customizer Framework
A total of 3,093 websites have been identified as vulnerable to CVE-2026-66629, based on global website indexing conducted by WebTechSurvey.
The Kirki Customizer Framework is affected by the CVE-2026-66629 vulnerability.
Kirki Customizer Framework versions up to and including 6.2.3 are vulnerable to CVE-2026-66629.