CVE-2021-36863— WordPress Quiz And Survey Master plugin <= 7.3.4 - Auth. Stored Cross-Site Scripting (XSS) vulnerability
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I. Basic Information for CVE-2021-36863
Vulnerability Information
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Vulnerability Title
WordPress Quiz And Survey Master plugin <= 7.3.4 - Auth. Stored Cross-Site Scripting (XSS) vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Auth. (contributor+) Stored Cross-Site Scripting (XSS) vulnerability in ExpressTech Quiz And Survey Master plugin <= 7.3.4 on WordPress.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
WordPress plugin ExpressTech Quiz And Survey Master 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台支持在PHP和MySQL的服务器上架设个人博客网站。WordPress plugin是一个应用插件。 WordPress plugin ExpressTech Quiz And Survey Master 7.3.4 版本及之前版本存在跨站脚本漏洞，该漏洞源于发现了存储型跨站脚本漏洞。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| ExpressTech | Quiz And Survey Master (WordPress plugin) | <= 7.3.4 ~ 7.3.4 | - |
II. Public POCs for CVE-2021-36863
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · ExpressTech · 2022-10-28 · 3 CVEs total
| CVE-2021-36898 | 7.5 HIGH | WordPress Quiz And Survey Master plugin <= 7.3.4 - Auth. SQL Injection (SQLi) vulnerabilit |
| CVE-2021-36864 | 3.4 LOW | WordPress Quiz And Survey Master plugin <= 7.3.4 - Auth. Reflected Cross-Site Scripting (X |
IV. Related Vulnerabilities
Same product: Quiz And Survey Master (WordPress plugin)
- CVE-2022-42883
WordPress Quiz And Survey Master plugin <= 7.3.10 - Sensitiv - CVE-2022-40698
WordPress Quiz And Survey Master plugin <= 7.3.10 - Cross-Si - CVE-2022-41652
WordPress Quiz And Survey Master plugin <= 7.3.10 - Bypass v - CVE-2021-36905
WordPress Quiz And Survey Master plugin <= 7.3.4 - Multiple - CVE-2021-36906
WordPress Quiz And Survey Master plugin <= 7.3.6 - Multiple
Same vendor: ExpressTech
- CVE-2026-5797
Quiz and Survey Master (QSM) <= 11.1.0 - Unauthenticated Sho - CVE-2026-2412
Quiz and Survey Master (QSM) <= 10.3.5 - Authenticated (Cont - CVE-2025-9637
Quiz and Survey Master (QSM) <= 10.3.1 - Missing Authorizati - CVE-2025-9318
Quiz and Survey Master (QSM) <= 10.3.1 - Authenticated (Subs - CVE-2025-9294
Quiz And Survey Master <= 10.3.1 - Missing Authorization to
Same weakness: CWE-79
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V. Comments for CVE-2021-36863
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