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CVE-2021-41976— Tad Uploader - Improper Authorization

Quick assessment

Affected
Tad Uploader
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Tad Web Solutions Tad Uploader是中国Tad Web Solutions公司的一个档案上传管理模组。 Tad Uploader 存在访问控制错误漏洞，远程攻击者无需登录即可使用该功能修改书单中的文件夹名称。

CVSS 5.3 · Medium EPSS 1.03% · P61

Possible ATT&CK Techniques 1 AI

T1136.001 · Local Account
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I. Basic Information for CVE-2021-41976

Vulnerability Information
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Vulnerability Title
Tad Uploader - Improper Authorization
Source: CVE Program / CVE List V5
Vulnerability Description
Tad Uploader edit book list function is vulnerable to authorization bypass, thus remote attackers can use the function to amend the folder names in the book list without logging in.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Tad Uploader 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tad Web Solutions Tad Uploader是中国Tad Web Solutions公司的一个档案上传管理模组。 Tad Uploader 存在访问控制错误漏洞，远程攻击者无需登录即可使用该功能修改书单中的文件夹名称。
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
Tad Uploader 0 ~ 3.5.3 -

II. Public POCs for CVE-2021-41976

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III. Intelligence Information for CVE-2021-41976

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Other References for CVE-2021-41976 (1)

Same Patch Batch · Tad · 2021-10-08 · 9 CVEs total

CVE-2021-41566 9.8 CRITICAL Tad TadTools - Arbitrary File Upload
CVE-2021-41974 9.1 CRITICAL Tad Book3 - Improper Authorization
CVE-2021-41975 7.5 HIGH Tad TadTools - Improper Authorization
CVE-2021-41563 6.1 MEDIUM Tad Book3 - Stored XSS
CVE-2021-41565 6.1 MEDIUM Tad TadTools - Reflected XSS
CVE-2021-41567 6.1 MEDIUM Tad Uploader - Stored XSS
CVE-2021-41564 5.3 MEDIUM Tad Honor - Improper Authorization
CVE-2021-41568 5.3 MEDIUM Tad Web - Improper Authorization

IV. Related Vulnerabilities

Same product: Uploader
Same vendor: Tad
Same weakness: CWE-285

V. Comments for CVE-2021-41976

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