CVE-2020-2506— improper access control vulnerability in Helpdesk
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I. Basic Information for CVE-2020-2506
Vulnerability Information
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Vulnerability Title
improper access control vulnerability in Helpdesk
Source: NVD (National Vulnerability Database)
Vulnerability Description
The vulnerability have been reported to affect earlier versions of QTS. If exploited, this improper access control vulnerability could allow attackers to compromise the security of the software by gaining privileges, or reading sensitive information. This issue affects: QNAP Systems Inc. Helpdesk versions prior to 3.0.3.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
访问控制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
QNAP Systems Helpdesk 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
QNAP Systems Helpdesk是中国威联通科技（QNAP Systems）公司的一款帮助台应用程序。 QNAP Systems Helpdesk 3.0.3 版本之前存在安全漏洞，该漏洞源于不适当的访问控制，攻击者可利用该漏洞获得对QNAP设备的控制。
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)
Shenlong Deep Dive — AI Deep Analysis
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| QNAP Systems Inc. | Helpdesk | unspecified ~ 3.0.3 | - |
II. Public POCs for CVE-2020-2506
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://www.qnap.com/zh-tw/security-advisory/qsa-20-08x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2020-2506
IV. Related Vulnerabilities
Same product: Helpdesk
- CVE-2026-23753
GFI HelpDesk < 4.99.9 Stored XSS via charset Parameter - CVE-2026-23752
GFI HelpDesk < 4.99.9 Stored XSS via companyname Parameter - CVE-2026-23756
GFI HelpDesk < 4.99.9 Stored XSS via Troubleshooter Step Sub - CVE-2026-23758
GFI HelpDesk < 4.99.9 Stored XSS via editsubject Parameter - CVE-2026-23757
GFI HelpDesk < 4.99.10 Stored XSS via Reports Module
Same weakness: CWE-284
- CVE-2026-8233
Dotouch XproUPF access control - CVE-2026-42569
phpvms: /importer authorization bypass causing full database - CVE-2026-42205
Avo: Broken Access Control: Unauthorized Execution of Arbitr - CVE-2026-41487
Langfuse: Improper role-based-access control in Langfuse LLM - CVE-2026-42278
UltraDAG: Smart Account Spending Policy Bypass via Pockets
V. Comments for CVE-2020-2506
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