| Title | SourceCodester Leave Application System in PHP and SQLite3 1.0 Local File Inclusion |
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| Description | A Local File Inclusion (LFI) vulnerability was discovered in the Leave Application System in PHP and SQLite3 developed by oretnom23.
The vulnerability exists because the application loads pages dynamically using a user-controlled parameter without proper validation.
The vulnerable code is:
$page = $_GET['page'] ?? 'home';
include($page.".php");
An attacker can manipulate the "page" parameter to include unintended files.
Using the PHP filter wrapper, attackers can read sensitive source code files.
Example payload:
?page=php://filter/convert.base64-encode/resource=index
This payload returns the Base64 encoded source code of the file.
The encoded data can be decoded using:
echo "BASE64CODE" | base64 -d
This reveals sensitive server-side source code including database connection files and authentication logic.
An attacker may use this information to further compromise the application. |
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| Source | ⚠️ https://medium.com/@hemantrajbhati5555/local-file-inclusion-lfi-in-leave-application-system-php-sqlite3-4e095bb7ee40 |
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| User | Hemant Raj Bhati (UID 95613) |
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| Submission | 03/15/2026 12:18 (4 months ago) |
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| Moderation | 03/31/2026 12:18 (16 days later) |
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| Status | Accepted |
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| VulDB entry | 354346 [SourceCodester Leave Application System 1.0 page file inclusion] |
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| Points | 20 |
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