Is CVE-2026-87963 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-87963?

CVE-2026-87963 has a CVSS v3 severity of HIGH (8.6).

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CVE-2026-87963

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.