CVE-2021-24221
8.8 · HIGHOverview
CVE-2021-24221 is a high-severity vulnerability affecting expresstech quiz_and_survey_master. It was published on April 12, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
The Quiz And Survey Master – Best Quiz, Exam and Survey Plugin for WordPress plugin before 7.1.12 did not sanitise the result_id GET parameter on pages with the [qsm_result] shortcode without id attribute, concatenating it in a SQL statement and leading to an SQL injection. The lowest role allowed to use this shortcode in post or pages being author, such user could gain unauthorised access to the DBMS. If the shortcode (without the id attribute) is embed on a public page or post, then unauthenticated users could exploit the injection.
Remediation
Check the references section for vendor advisories and patches from expresstech. Update quiz_and_survey_master to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| expresstech | quiz_and_survey_master | >= 0, < 7.1.12 | Affected |
Frequently Asked Questions
What is CVE-2021-24221?
CVE-2021-24221 is a high-severity vulnerability affecting expresstech quiz_and_survey_master. It was published on April 12, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2021-24221?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-24221?
Check the references section for vendor advisories and patches from expresstech. Update quiz_and_survey_master to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-24221?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-24221 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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