CVE-2026-42740

WordPress Tainacan plugin <= 1.0.3 - SQL Injection vulnerability

9.3 Critical

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in tainacan Tainacan tainacan allows Blind SQL Injection.This issue affects Tainacan: from n/a through <= 1.0.3.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: Low

Exploit likelihood

0.24%Up 0.2 points since May 27, 2026

What each source reports

CVE List Score used 9.3

WordPress Tainacan plugin <= 1.0.3 - SQL Injection vulnerability

Record: CVE-2026-42740
CVSS 3.1: 9.3 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L
Weakness: CWE-89
Updated: 2026-11-02

EUVDEUVD-2026-32192 9.3

Record: EUVD-2026-32192
CVSS 3.1: 9.3 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L
Updated: 2026-11-02

GitHub AdvisoriesGHSA-9h9p-24mg-7v88 9.3

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')...

Record: GHSA-9h9p-24mg-7v88
CVSS 3.1: 9.3 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L
Weakness: CWE-89
Updated: 2026-11-02

NVD 9.3

Record: CVE-2026-42740
CVSS 3.1: 9.3 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L
Weakness: CWE-89
Updated: 2026-11-02

Affected products

tainacan

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-42740 is a critical vulnerability (CVSS 9.3) in Tainacan, published May 27, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.24%, the 15th percentile. No source names a fixed version.