CVE-2021-20112
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I. Basic Information for CVE-2021-20112
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A stored cross-site scripting vulnerability exists in TCExam <= 14.8.1. Valid files uploaded via tce_select_mediafile.php with a filename beggining with a period will be rendered as text/html. An attacker with access to tce_select_mediafile.php could upload a malicious javascript payload which would be triggered when another user views the file.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Tecnick.com TCExam 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tecnick.com TCExam是英国Tecnick.com公司的一套基于Web的开源电子考试系统。该系统主要用于在线考试等。 TCExam 存在跨站脚本漏洞，该漏洞源于tce_select_mediafile.php中对用户提供的数据验证不足。远程认证的攻击者可利用该漏洞在受影响用户的浏览器中注入并执行任意的HTML和脚本代码。
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 |
|---|---|---|---|---|
| - | TCExam | 14.8.1 | - |
II. Public POCs for CVE-2021-20112
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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- https://www.tenable.com/security/research/tra-2021-32x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-20112
Same Patch Batch · n/a · 2021-07-29 · 18 CVEs total
| CVE-2021-23418 | 6.3 MEDIUM | XML External Entity (XXE) Injection |
| CVE-2020-18158 | HuCart 跨站脚本漏洞 | |
| CVE-2021-31799 | Ruby 命令注入漏洞 | |
| CVE-2021-30124 | Microsoft Visual Studio Code 命令注入漏洞 | |
| CVE-2021-36386 | Fetchmail 资源管理错误漏洞 | |
| CVE-2020-22761 | Flatpress 跨站请求伪造漏洞 | |
| CVE-2020-22765 | Vinades NukeViet 跨站脚本漏洞 | |
| CVE-2020-21808 | Vinades NukeViet SQL注入漏洞 | |
| CVE-2020-21809 | Vinades NukeViet SQL注入漏洞 | |
| CVE-2020-18157 | Metinfo 跨站请求伪造漏洞 | |
| CVE-2021-20114 | Tecnick.com TCExam 信息泄露漏洞 | |
| CVE-2020-18175 | Metinfo MetInfo SQL注入漏洞 | |
| CVE-2021-36621 | SourceCodester Online Covid Vaccination Scheduler System SQL注入漏洞 | |
| CVE-2021-36624 | SourceCodester Phone Shop Sales Managements System SQL注入漏洞 | |
| CVE-2021-37144 | CSZ CMS 安全漏洞 | |
| CVE-2021-20111 | Tecnick.com TCExam 跨站脚本漏洞 | |
| CVE-2021-20113 | Tecnick.com TCExam 信息泄露漏洞 |
IV. Related Vulnerabilities
Same product: TCExam
- CVE-2026-4169
Tecnick TCExam XML Export tce_xml_users.php F_xml_export_use - CVE-2026-4168
Tecnick TCExam Group tce_edit_group.php cross site scripting - CVE-2025-23176
Tecnick – CWE-89: Improper Neutralization of Special Elemen - CVE-2025-23175
Tecnick - Multiple XSS (CWE-79) - CVE-2024-47926
Tecnick TCExam – CWE-89: Improper Neutralization of Special
Same vendor: n/a
- CVE-2026-8276
bettercap MySQL Server mysql_server.go integer coercion - CVE-2026-8275
bettercap zerogod IPP Service zerogod_ipp_primitives.go ippR - CVE-2026-8270
Open5GS SMF ogs_nas_parse_qos_rules denial of service - CVE-2026-8269
Open5GS SMF smf_nsmf_handle_create_sm_context denial of serv - CVE-2026-8268
Open5GS SMF OpenAPI_list_create denial of service
V. Comments for CVE-2021-20112
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