What is CVE-2026-89302?

CVE-2026-89302 is a high-severity vulnerability in Post Voting System, classified under SQL Injection. CVSS score: 8.6/10. Published 2026-10-11.

How severe is CVE-2026-89302?

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

SQL Injection in Post Voting System

CVE-2026-89302

The Post Voting System WordPress plugin through 1.0 does not properly sanitize and escape a parameter before using it in a SQL query, allowing unauthenticated users to perform SQL injection attacks.

Vulnerability class: SQL Injection

Published 2026-10-11 · last modified 2026-10-11.

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.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Post Voting System

Weakness classification (CWE)

CWE-89 — SQL Injection

References

wpscan.com/vulnerability/27dda3f8-1221-4710-bced-229577d20977/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-89302?: CVE-2026-89302 is a high-severity vulnerability in Post Voting System, classified under SQL Injection. CVSS score: 8.6/10. Published 2026-10-11.
How severe is CVE-2026-89302?: High severity. CVSS v3 base score is 8.6 out of 10.