backpack/crud: SingleBase64Image accepts any base64 payload behind a `data:image` prefix — SVG-with-script lands on the public disk
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| Laravel-Backpack | CRUD | affected |
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| Laravel-backpack | Crud |
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| Source | ID | Title |
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Github GHSA |
GHSA-8hw4-7qjr-3wxg | Laravel Backpack CRUD: SingleBase64Image accepts any base64 payload behind a `data:image` prefix — SVG-with-script lands on the public disk |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.261% probability within 30 days)
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| Metrics |
ssvc
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| First Time appeared |
Laravel-backpack
Laravel-backpack crud |
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| Vendors & Products |
Laravel-backpack
Laravel-backpack crud |
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| Description | backpack/crud provides Create, Read, Update & Delete (CRUD) functions for Backpack, a collection of Laravel packages that help users build custom administration panels. From 6.0.0 until 6.8.14 and 7.0.37, the src/app/Library/Uploaders/SingleBase64Image.php methods SingleBase64Image::uploadFiles and SingleBase64Image::uploadRepeatableFiles, used by image fields through withFiles(), accept any data URI beginning with data:image without validating the declared MIME subtype or decoded bytes, while src/app/Library/Uploaders/Support/FileNameGenerator.php method FileNameGenerator::getExtensionFromFile applies mime_content_type() to the data URI instead of the decoded content. An authenticated administrator can therefore store arbitrary file content under an extensionless filename on the configured disk, which can cause stored cross-site scripting or other unintended behavior when the file is served and accessed. This issue is fixed in version 7.0.38 and 6.8.14. | |
| Title | backpack/crud: SingleBase64Image accepts any base64 payload behind a `data:image` prefix — SVG-with-script lands on the public disk | |
| Weaknesses | CWE-434 CWE-79 |
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| References |
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| Metrics |
cvssV3_1
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