Vulnerability · Published Sep 17, 2026 · Assigned by WPScan

CVE-2026-87963Yo 1.1 - 1.3.1 - Unauthenticated SQL Injection via username Parameter

High 8.6

In plain English

A high-severity SQL injection in Yo from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities).

Severity (CVSS 3.1)8.6High

Exploit odds (30 days)0.4%top 61.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

The Yo WordPress plugin from 1.1 through 1.3.1 does not sanitize or parameterize the username request parameter before using it in a SQL query, and reads it before WordPress applies its request escaping, allowing unauthenticated attackers to perform SQL injection and read arbitrary database contents including administrator password hashes.

Affected products (as reported)

Vendor	Product	Versions
Unknown	Yo	1.1 – through 1.3.1

Weakness: CWE-89 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

References

https://wpscan.com/vulnerability/1cc5d470-7ffe-496a-9911-9b3b5c700194/ exploit, vdb-entry, technical-description