How severe is CVE-2021-36865?

CVE-2021-36865 has a CVSS 3.x base score of 3.8, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.

Is CVE-2021-36865 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-36865?

CVE-2021-36865 affects Quizandsurveymaster Quiz And Survey Master. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-36865?

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

When was CVE-2021-36865 published?

CVE-2021-36865 was published on 2022-09-30 and last updated on 2026-06-17.

CVE-2021-36865

CVE-2021-36865 is a low-severity vulnerability in Quizandsurveymaster Quiz And Survey Master with a CVSS 3.x base score of 3.8. 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-639.

Key facts

Severity: Low (CVSS 3.x base score 3.8)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-639
Affected product: Quizandsurveymaster Quiz And Survey Master
Published: 2022-09-30
Last modified: 2026-06-17

Description

Insecure direct object references (IDOR) vulnerability in ExpressTech Quiz And Survey Master plugin <= 7.3.4 at WordPress allows attackers to change the content of the quiz.

Frequently asked questions

What is CVE-2021-36865?: Insecure direct object references (IDOR) vulnerability in ExpressTech Quiz And Survey Master plugin <= 7.3.4 at WordPress allows attackers to change the content of the quiz.
How severe is CVE-2021-36865?: CVE-2021-36865 has a CVSS 3.x base score of 3.8, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.
Is CVE-2021-36865 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-36865?: CVE-2021-36865 affects Quizandsurveymaster Quiz And Survey Master. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-36865?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-36865 published?: CVE-2021-36865 was published on 2022-09-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:quizandsurveymaster:quiz_and_survey_master:*:*:*:*:*:wordpress:*:*

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