Arbitrary File Upload Affecting backpack/crud package, versions >=6.0.0, <6.8.14>=7.0.0, <7.0.38
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PHP-BACKPACKCRUD-19428001
- published29 Aug 2026
- disclosed20 Aug 2026
- creditUnknown
Introduced: 20 Aug 2026
NewCVE-2026-54179 (opens in a new tab)How to fix?
Upgrade backpack/crud to version 6.8.14, 7.0.38 or higher.
Overview
backpack/crud is a package that helps you build an admin interface for your Eloquent models, using Laravel 5
Affected versions of this package are vulnerable to Arbitrary File Upload via the SingleBase64Image::uploadFiles — the uploader bound to image-typed fields via withFiles() — only verifies that the submitted value starts with the string data:image. The MIME subtype and the base64-decoded bytes are never inspected or validated. A related bug in FileNameGenerator causes the stored file to receive an extensionless filename, because mime_content_type() returns false when given a data URI instead of a filesystem path.