6.4

CVE-2024-6390: expresstech quiz and survey master Cross-site Scripting

CVSS: 6.4v3.1MediumAnalyzed
Published 03-08-2024Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2024-6390 is a medium (CVSS 6.4) Cross-site Scripting vulnerability in expresstech quiz and survey master. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 24.4% of scored vulnerabilities. 1 public exploit is recorded. Fixed in 9.1.0.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.4/10
010
Medium · v3.1 (wordfence)
EPSS score
0.33%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 03-08-2024
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

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

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.33%

Chance of exploitation in the next 30 days

Percentile

24%

Versus all other CVEs

30-day change

0.00 pp

From 0.33% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.33%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (wpscan.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Expresstech1 product
Unknown1 product
Wordpress1 product
  • quiz-master-next≤ 9.0.5 (fixed in 9.1.0)

3 vendors · 3 products

References

2 links