CVE-2021-47749

MEDIUM
2026-01-13 [email protected]
5.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Jan 26, 2026 - 16:15 vuln.today
Public exploit code
CVE Published
Jan 13, 2026 - 23:15 nvd
MEDIUM 5.5

Tags

PHP Lfi Path Traversal Youphptube

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.

Analysis

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. [CVSS 5.5 MEDIUM]

Technical Context

Classified as CWE-22 (Path Traversal). Affects Youphptube. 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.

Affected Products

Vendor: Youphptube. Product: Youphptube.

Remediation

Monitor vendor advisories for a patch. Validate and sanitize file path inputs. Use allowlists.

Priority Score

48
Low Medium High Critical
KEV: 0
EPSS: +0.2
CVSS: +28
POC: +20

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CVE-2021-47749 vulnerability details – vuln.today
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