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CVE-2026-87963

Yo 1.1 - 1.3.1 - Unauthenticated SQL Injection via username Parameter

HIGH
8.6
CVSS Score
Published: September 17, 2026 at 07:05 AM UTC
Updated: September 20, 2026 at 02:32 PM UTC
1 product affected across 1 vendorYo

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Severity
HIGH8.6
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Yo· Yo Projectwordpress-plugin
50%
1.1 ≤ v ≤ 1.3.11.1

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

ExploitVDB EntryTechnical Description
Source: cverecord
https://wpscan.com/vulnerability/1cc5d470-7ffe-496a-9911-9b3b5c700194/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.6HIGHWPScan
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-89

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