CVE-2026-59521

WordPress Real Testimonials plugin <= 3.1.15 - PHP Object Injection vulnerability

Deserialization of Untrusted Data vulnerability in ShapedPlugin LLC Real Testimonials testimonial-free allows Object Injection.This issue affects Real Testimonials: from n/a through <= 3.1.15.

We have discovered 7,565 live websites that are affected by CVE-2026-59521.

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Affected Software

Product  Testimonial Free
Category Wordpress Plugins
Vulnerable Domains7,565 live websites (99% of Testimonial Free install base)
Vulnerable Versions
  • from 0 through 3.1.15
Vulnerable Versions Count72 versions ( 99% of all versions)



Details

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

Credits

  • Ananda Dhakal (Patchstack) (finder)

Website Distribution by Country

Number of websites using CVE-2026-59521
United States3,038 websites


GB676 websites
India503 websites
Germany449 websites
Australia398 websites
France283 websites
Canada282 websites
Netherlands141 websites
South Africa126 websites
Cyprus126 websites

Website Distribution by TLD

Number of websites using CVE-2026-59521
.com4,045 websites
.co.uk475 websites
.com.au396 websites
.org248 websites
.de203 websites
.ca174 websites
.net152 websites
.nl136 websites
.fr115 websites
.pl92 websites

Vulnerable Versions

Vulnerable versions are highlighted in red

Websites affected by CVE-2026-59521

Top websites that are affected by CVE-2026-59521. Please click on the "Contact us" link to get more information.
DomainCountryRankContacts
*******.com United States**,***
*************.com India**,***
****************.com United States**,***
***********.com United States**,***
*********.***.au Australia**,***
********.com United States***,***
********.****.edu United States***,***
**************.be Belgium***,***
*************.fr United States***,***
*************.com United States***,***
See full domain list

FAQ

A total of 7,565 websites have been identified as vulnerable to CVE-2026-59521, based on global website indexing conducted by WebTechSurvey.
The Testimonial Free is affected by the CVE-2026-59521 vulnerability.
Testimonial Free versions up to and including 3.1.15 are vulnerable to CVE-2026-59521.