SQL Injection Vulnerability in Tainacan Plugin by WordPress
CVE-2026-42740

9.3CRITICAL

Key Information:

Vendor

WordPress
Status
Tainacan
Vendor
CVE Published:
27 May 2026

What is CVE-2026-42740?

The Tainacan plugin for WordPress is susceptible to a Blind SQL Injection vulnerability due to improper neutralization of special elements within SQL commands. This flaw enables attackers to manipulate database queries, potentially exposing sensitive information without authorization. It affects versions from n/a to 1.0.3, emphasizing the need for users to upgrade and secure their installations immediately.

Affected Version(s)

Tainacan 0 <= 1.0.3

References

https://patchstack.com/database/Wordpress/Plugin/tainacan...
vdb-entry

CVSS V3.1

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

hhhai | Patchstack Bug Bounty Program
.