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VulnerabilityPublished

CVE-2026-89303: Post Voting System (WordPress plugin) · SQL Injection

Affects Post Voting System (WordPress plugin)Source CVE Database V5

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Not known to be exploited · CVSS 6.4 Medium.

Data as of 11 Nov 2026, 23:24 UTC

CVSS 3.1 base score
6.4Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Post Voting SystemAffected
  • <=1.0
Fixed in–

AI-suggested

Users should monitor the vendor's advisory for updates and consider restricting authenticated user privileges as a temporary mitigation until a fix is released.

Description

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 any authenticated user to perform SQL injection attacks.

References

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