SQL Injection Vulnerability in WP Post Author Plugin by WordPress
CVE-2026-57643

8.5HIGH

Key Information:

Vendor

WordPress
Status
WP Post Author
Vendor
CVE Published:
26 June 2026

What is CVE-2026-57643?

A SQL Injection vulnerability in the WP Post Author plugin allows attackers to execute arbitrary SQL commands via input fields, potentially leading to unauthorized access to sensitive data and manipulation of database content. Versions up to and including 3.9.1 are affected, creating a significant security risk for WordPress sites using this plugin.

Affected Version(s)

WP Post Author <= 3.9.1

References

https://patchstack.com/database/wordpress/plugin/wp-post-...
vdb-entry

CVSS V3.1

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

hhhai | Patchstack Bug Bounty Program
.