CVE-2021-24691 json
Quiz And Survey Master < 7.3.2 - Admin+ Stored Cross-Site Scripting
published 2021-10-11 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11603
- cvss
- 4.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 50%
- public exploits
- 0
- none known
Summary
The Quiz And Survey Master WordPress plugin before 7.3.2 does not escape the Quiz Url Slug setting before outputting it in some pages, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed
Patch / fix
- expresstech quiz_and_survey_master 7.3.2
Exploit prediction
0.62% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/ecf6a082-b563-42c4-9d8c-3757aa6b696f referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
Affected products
- Unknown Quiz And Survey Master – Best Quiz, Exam and Survey Plugin for WordPress
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
wpscan.com
/vulnerability/ecf6a082-b563-42c4-9d8c-3757aa6b696f
exploit, third-party-advisory
Sources
- CVE List CVE-2021-24691
- NVD CVE-2021-24691
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.