CVE-2021-24456

Quiz Maker <= 6.2.0.8 - SQL Injection

2021-06-29 00:00
To Quang Duong

Strategic Overview

Status
Patched in 6.2.0.9
Affected Plugin
Quiz Maker by AYS
Affected Version
< 6.2.0.9
CVSS
7.2High
Weakness type
CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CVE
CVE-2021-24456
View all Quiz Maker by AYS vulnerabilities

At a glance

CVE-2021-24456 is a high-severity Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in the Quiz Maker by AYS WordPress plugin, affecting versions < 6.2.0.9. It carries a CVSS score of 7.2 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). The issue is fixed in version 6.2.0.9; sites on affected versions should update now. Disclosed June 2021, reported by To Quang Duong.

Vulnerability Overview

The Quiz Maker WordPress plugin before 6.2.0.9 did not properly sanitise and escape the order and orderby parameters before using them in SQL statements, leading to SQL injection issues in the admin dashboard

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Reaching this weakness in Quiz Maker by AYS < 6.2.0.9 takes a caller who can reach the endpoint. SQL injection happens when request data is concatenated into a query instead of being bound as a parameter, letting an attacker change the structure of the statement rather than just its values.

A working injection can read any table the database user can see, which on a WordPress install means user records, password hashes and session or API secrets stored in options. For Quiz Maker by AYS the fix is 6.2.0.9: builds < 6.2.0.9 are affected, anything from 6.2.0.9 onward is not.

Remediation

Update to version 6.2.0.9, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Quiz Maker by AYS: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Quiz Maker by AYS 6.2.0.9 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-24456https://www.wordfence.com/threat-intel/vulnerabilities/id/0b3acc5f-b2a5-4e7b-a596-9a934fe6ff87https://nvd.nist.gov/vuln/detail/CVE-2021-24456

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C