| Title | SourceCodester Modern Image Gallery App V1 Cross Site Scripting |
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| Description | During the security assessment of "Modern Image Gallery App", I detected a Stored Cross-Site Scripting (XSS) vulnerability in the "upload.php" file. This vulnerability is attributed to the insufficient validation and output encoding of the user input provided through the "filename" parameter and the file content. Attackers can inject and execute malicious scripts, which can compromise user sessions and sensitive information. Immediate remediation is required to ensure that all user-supplied data is properly handled before being displayed in the web interface. |
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| Source | ⚠️ https://github.com/tiancesec/CVE/issues/28 |
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| User | SHU for security (UID 95070) |
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| Submission | 02/13/2026 16:49 (4 months ago) |
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| Moderation | 02/23/2026 20:05 (10 days later) |
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| Status | Accepted |
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| VulDB entry | 347425 [SourceCodester Modern Image Gallery App 1.0 upload.php filename cross site scripting] |
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| Points | 20 |
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