SQL Injection Vulnerability in Post Voting System WordPress Plugin
CVE-2026-89302

Currently unrated

Key Information:

Vendor

WordPress

Vendor
CVE Published:
11 October 2026

Badges

๐Ÿ‘พ Exploit Exists๐ŸŸก Public PoC

What is CVE-2026-89302?

The Post Voting System plugin for WordPress, up to version 1.0, has a vulnerability stemming from improper sanitization and escaping of user-supplied parameters in SQL queries. This flaw allows unauthenticated attackers to execute arbitrary SQL code, potentially leading to unauthorized access and data manipulation in the database. Websites using this plugin should take immediate action to mitigate the risk associated with this vulnerability.

Affected Version(s)

Post Voting System 0 <= 1.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

References

Timeline

  • ๐ŸŸก

    Public PoC available

  • ๐Ÿ‘พ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Naoki Kawahigashi
WPScan
.