What is CVE-2026-87963?

CVE-2026-87963 is a high-severity vulnerability in Yo, classified under CWE-89 SQL INJECTION. CVSS score: 8.6/10. Published 2026-09-17.

How severe is CVE-2026-87963?

High severity. CVSS v3 base score is 8.6 out of 10.

Vulnerability in Yo

CVE-2026-87963

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.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N.

Affected products

Unknown Yo

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-87963?: CVE-2026-87963 is a high-severity vulnerability in Yo, classified under CWE-89 SQL INJECTION. CVSS score: 8.6/10. Published 2026-09-17.
How severe is CVE-2026-87963?: High severity. CVSS v3 base score is 8.6 out of 10.