CVE-2021-36898 HIGH

CVE-2021-36898: WordPress Quiz And Survey Master plugin <= 7.3.4 - Auth. SQL Injection (SQLi) vulnerability

Vendor Expresstech

Product Quiz And Survey Master (WordPress plugin)

Weakness CWE-89 · SQLi

Published October 28, 2022

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

7.5/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction None

Confidentiality High

Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

What the vulnerability does

01Description

Auth. SQL Injection (SQLi) vulnerability in Quiz And Survey Master plugin <= 7.3.4 on WordPress.

Explanation of Vulnerability in Simple Terms

02Summary

Quiz And Survey Master versions up to 7.3.4 contain a SQL injection vulnerability in the plugin's database queries. An unauthenticated attacker can craft malicious input to extract sensitive data from the WordPress database, including user credentials and private survey responses. No user interaction is required to exploit this flaw.

What an attacker can do

03Attacker Capabilities

Read sensitive data from the WordPress database, including user credentials and survey responses.

Potential impact on your site

04Site Impact

Attackers can steal user data, passwords, and private survey information without logging in.

Conditions required to exploit

05Prerequisites

Network access to the site; no authentication or user interaction required.

Key dates

06Disclosure timeline

October 28, 2022 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2021-36898 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/89.html AskarLabs — CWE-89 write-up SQL Injection

Related vulnerabilities

Identifiers

CVE CVE-2021-36898

CWE CWE-89

CVSS 7.5 / HIGH

Affected versions