How severe is CVE-2024-6390?

CVE-2024-6390 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2024-6390 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-6390?

CVE-2024-6390 affects Expresstech Quiz And Survey Master. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-6390?

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

Does CVE-2024-6390 have an EU (EUVD) identifier?

Yes. CVE-2024-6390 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-47497.

When was CVE-2024-6390 published?

CVE-2024-6390 was published on 2024-08-03 and last updated on 2026-06-17.

CVE-2024-6390

CVE-2024-6390 is a medium-severity vulnerability in Expresstech Quiz And Survey Master with a CVSS 3.x base score of 5.9. 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 5.9)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-47497
Weakness: CWE-79
Affected product: Expresstech Quiz And Survey Master
Published: 2024-08-03
Last modified: 2026-06-17

Description

The Quiz and Survey Master (QSM) WordPress plugin before 9.1.0 does not properly sanitise and escape some of its Quizz settings, which could allow high privilege users such as contributor to perform Stored Cross-Site Scripting attacks

Frequently asked questions

What is CVE-2024-6390?: The Quiz and Survey Master (QSM) WordPress plugin before 9.1.0 does not properly sanitise and escape some of its Quizz settings, which could allow high privilege users such as contributor to perform Stored Cross-Site Scripting attacks
How severe is CVE-2024-6390?: CVE-2024-6390 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2024-6390 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-6390?: CVE-2024-6390 affects Expresstech Quiz And Survey Master. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-6390?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-6390 have an EU (EUVD) identifier?: Yes. CVE-2024-6390 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-47497.
When was CVE-2024-6390 published?: CVE-2024-6390 was published on 2024-08-03 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/00586687-33c7-4d84-b606-0478b1063d24/

Affected products (1)

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

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