CVE-2023-35910

WordPress Quasar form Plugin <= 6.0 is vulnerable to SQL Injection

8.5 High

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Nucleus_genius Quasar form free – Contact Form Builder for WordPress allows SQL Injection.This issue affects Quasar form free – Contact Form Builder for WordPress: from n/a through 6.0.

Attack profile

How easy it is to exploit

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

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: Low

Exploit likelihood

0.69%Up 0.6 points since Nov 4, 2023

What each source reports

CVE List Score used 8.5

WordPress Quasar form Plugin <= 6.0 is vulnerable to SQL Injection

Record: CVE-2023-35910
CVSS 3.1: 8.5 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-89
Updated: 2026-11-02

EUVDEUVD-2023-39901 8.8

Record: EUVD-2023-39901
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-3rq5-m4c8-3hw6 8.8

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

Record: GHSA-3rq5-m4c8-3hw6
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-89
Updated: 2026-11-02

NVD 8.5

Record: CVE-2023-35910
CVSS 3.1: 8.5 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-89
Updated: 2026-11-02

Affected products

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-2023-35910 is a high vulnerability (CVSS 8.5) in Nucleus Genius Quasar Form Free – Contact Form Builder For Wordpress, published November 3, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.69%, the 52nd percentile. No source names a fixed version.