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CVE-2021-47749— YouPHPTube <= 7.8 - Directory Traversal

Quick assessment

Affected
YouPHPTube YouPHPTube
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.

YouPHPTube是YouPHPTube开源的一套基于PHP的视频网站系统。 YouPHPTube 7.8及之前版本存在路径遍历漏洞，该漏洞源于对GET请求中lang参数的操作不当，可能导致本地文件包含。

CVSS 5.5 · Medium EPSS 1.85% · P78

Possible ATT&CK Techniques 2 AI

T1083 · File and Directory Discovery T1122

Affected Version Matrix 1

VendorProduct Version RangeStatus
YouPHPTube YouPHPTube ≤ 7.8 affected
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I. Basic Information for CVE-2021-47749

Vulnerability Information
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Vulnerability Title
YouPHPTube <= 7.8 - Directory Traversal
Source: CVE Program / CVE List V5
Vulnerability Description
YouPHPTube <= 7.8 contains a local file inclusion vulnerability that allows unauthenticated attackers to access arbitrary files by manipulating the 'lang' parameter in GET requests. Attackers can exploit the path traversal flaw in locale/function.php to include and view PHP files outside the intended directory by using directory traversal sequences.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
YouPHPTube 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
YouPHPTube是YouPHPTube开源的一套基于PHP的视频网站系统。 YouPHPTube 7.8及之前版本存在路径遍历漏洞，该漏洞源于对GET请求中lang参数的操作不当，可能导致本地文件包含。
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
YouPHPTube YouPHPTube 0 ~ 7.8 -

II. Public POCs for CVE-2021-47749

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III. Intelligence Information for CVE-2021-47749

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Vendor Advisories for CVE-2021-47749 (1)

Exploits & Public PoCs for CVE-2021-47749 (1)

Other References for CVE-2021-47749 (1)

IV. Related Vulnerabilities

Same product: YouPHPTube
Same vendor: YouPHPTube
Same weakness: CWE-22

V. Comments for CVE-2021-47749

Anonymous User
2026-01-15 06:09:08

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