CVE-2021-36863 json
WordPress Quiz And Survey Master plugin <= 7.3.4 - Auth. Stored Cross-Site Scripting (XSS) vulnerability
published 2022-10-28 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-23439
- cvss
- 5.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 48%
- public exploits
- 0
- none known
Summary
Auth. (contributor+) Stored Cross-Site Scripting (XSS) vulnerability in ExpressTech Quiz And Survey Master plugin <= 7.3.4 on WordPress.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 20 mo ago
Exploit prediction
0.59% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Affected products
- ExpressTech Quiz And Survey Master (WordPress plugin)
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
wordpress.org
/plugins/quiz-master-next/#developers
product, third-party-advisory
-
patchstack.com
/database/vulnerability/quiz-master-next/wordpress-quiz-and-survey-master-plugin-7-3-4-auth-stored-cross-site-
third-party-advisory
Sources
- CVE List CVE-2021-36863
- NVD CVE-2021-36863
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.