Hiro

Hiro is a security researcher credited with 18 disclosed vulnerabilities in the WordSec WordPress vulnerability database, ranked #285 of 3,515 contributors. Their disclosures were published between 2024 and 2025. The most productive year was 2025, with 17 findings.

Their research concentrates on Missing Authorization, which accounts for 9 of their findings (50%). Other recurring categories include SQL Injection, Cross-Site Scripting. The average CVSS score across these disclosures is 5.7, peaking at 8.8. Severity breakdown: 0 critical and 3 high.

The most affected software includes Custom API for WP (2), App Builder (1), Easy Appointment Booking & Scheduling… (1), across 17 distinct plugins, themes and core versions in total.

13 of the 18 disclosed issues have a vendor fix, while 5 remain unpatched. The most severe finding, "Custom API for WP <= 4.2.2 - Authenticated (Subscriber+) Privilege Escalation", scores 8.8 out of 10.