How severe is CVE-2022-4033?

CVE-2022-4033 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2022-4033 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-4033?

CVE-2022-4033 affects Expresstech Quiz And Survey Master. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-4033?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-4033 published?

CVE-2022-4033 was published on 2022-11-29 and last updated on 2026-06-17.

CVE-2022-4033

CVE-2022-4033 is a medium-severity vulnerability in Expresstech Quiz And Survey Master with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Expresstech Quiz And Survey Master
Published: 2022-11-29
Last modified: 2026-06-17

Description

The Quiz and Survey Master plugin for WordPress is vulnerable to input validation bypass via the 'question[id]' parameter in versions up to, and including, 8.0.4 due to insufficient input validation that allows attackers to inject content other than the specified value (i.e. a number, file path, etc..). This makes it possible attackers to submit values other than the intended input type.

Frequently asked questions

What is CVE-2022-4033?: The Quiz and Survey Master plugin for WordPress is vulnerable to input validation bypass via the 'question[id]' parameter in versions up to, and including, 8.0.4 due to insufficient input validation that allows attackers to inject content other than the specified value (i.e. a number, file path, etc..). This makes it possible attackers to submit values other than the intended input type.
How severe is CVE-2022-4033?: CVE-2022-4033 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2022-4033 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-4033?: CVE-2022-4033 affects Expresstech Quiz And Survey Master. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-4033?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-4033 published?: CVE-2022-4033 was published on 2022-11-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:expresstech:quiz_and_survey_master:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Expresstech Quiz And Survey Master

CVE-2020-35949 — Critical (CVSS 10.0): An issue was discovered in the Quiz and Survey Master plugin before 7.0.1 for WordPress. It made it possible for…
CVE-2024-3592 — Critical (CVSS 9.9): The Quiz And Survey Master – Best Quiz, Exam and Survey Plugin for WordPress plugin for WordPress is vulnerable to…
CVE-2020-35951 — Critical (CVSS 9.9): An issue was discovered in the Quiz and Survey Master plugin before 7.0.1 for WordPress. It allows users to delete…
CVE-2024-5606 — High (CVSS 8.8): The Quiz and Survey Master (QSM) WordPress plugin before 9.0.2 is vulnerable does not validate and escape the…
CVE-2022-0180 — High (CVSS 8.8): Cross-site request forgery (CSRF) vulnerability in Quiz And Survey Master versions prior to 7.3.7 allows a remote…
CVE-2021-24221 — High (CVSS 8.8): The Quiz And Survey Master – Best Quiz, Exam and Survey Plugin for WordPress plugin before 7.1.12 did not sanitise…

All CVEs affecting Expresstech Quiz And Survey Master →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →