Arbitrary file upload in Funadmin
CVE-2026-7733
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.005 (40.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
- Funadmin — versions 7.1.0-rc1, 7.1.0-rc2, 7.1.0-rc3
Weakness classification (CWE)
References
- gitee.com/funadmin/funadmin/ (product)
- gitee.com/funadmin/funadmin/issues/IJ8NXT (issue-tracking, exploit)
- gitee.com/funadmin/funadmin/pulls/59 (patch)
- vuldb.com/submit/807559 (third-party-advisory)
- vuldb.com/vuln/360908 (technical-description, vdb-entry)
- vuldb.com/vuln/360908/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-7733?
- CVE-2026-7733 is a high-severity vulnerability in Funadmin, classified under Improper Access Control. CVSS score: 7.3/10. Published 2026-05-04.
- How severe is CVE-2026-7733?
- High severity. CVSS v3 base score is 7.3 out of 10.