How severe is CVE-2021-36867?

CVE-2021-36867 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-36867 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-36867?

CVE-2021-36867 affects Psychological Tests & Quizzes Project Psychological Tests & Quizzes. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-36867?

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

When was CVE-2021-36867 published?

CVE-2021-36867 was published on 2022-04-26 and last updated on 2026-06-17.

CVE-2021-36867

CVE-2021-36867 is a medium-severity vulnerability in Psychological Tests & Quizzes Project Psychological Tests & Quizzes with a CVSS 3.x base score of 5.4. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Psychological Tests & Quizzes Project Psychological Tests & Quizzes
Published: 2022-04-26
Last modified: 2026-06-17

Description

Stored Cross-Site Scripting (XSS) vulnerability in Alexander Ustimenko's Psychological tests & quizzes plugin <= 0.21.19 on WordPress possible for users with contributor or higher user rights.

Frequently asked questions

What is CVE-2021-36867?: Stored Cross-Site Scripting (XSS) vulnerability in Alexander Ustimenko's Psychological tests & quizzes plugin <= 0.21.19 on WordPress possible for users with contributor or higher user rights.
How severe is CVE-2021-36867?: CVE-2021-36867 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-36867 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-36867?: CVE-2021-36867 affects Psychological Tests & Quizzes Project Psychological Tests & Quizzes. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-36867?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-36867 published?: CVE-2021-36867 was published on 2022-04-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:psychological_tests_\&_quizzes_project:psychological_tests_\&_quizzes:*:*:*:*:*:wordpress:*:*

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