---
id: CVE-2026-89302
title: >-
  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.
summary: >-
  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.
severity: high
cvss: 8.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N'
cwe:
  - CWE-89
published: '2026-10-11'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T16:29:21.907'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89302'
references:
  - url: 'https://wpscan.com/vulnerability/27dda3f8-1221-4710-bced-229577d20977/'
    label: contact@wpscan.com
tags:
  - nvd
  - cve.org
epss: 0.00262
epssPercentile: 0.17954
ingestedAt: '2026-10-11T08:44:24.729Z'
product: Post Voting System
affected:
  - post_voting_system <= 1.0
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-11T11:16:56.558599Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.