CVE-2026-7733

funadmin Frontend Chunked Upload Endpoint UploadService.php chunkUpload unrestricted upload

State: Published
Severity: 6.9 Medium
Published: May 4, 2026
Updated: May 4, 2026
Reserved: May 3, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	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	VulDB
3.1	7.3 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C	VulDB
3.0	7.3 High	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C	VulDB
2.0	7.5 High	AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C	VulDB

Weaknesses

CWE-434 Unrestricted Upload
CWE-284 Improper Access Controls

Affected Products

Product	Versions
funadminn/a	7.1.0-rc1Affected 7.1.0-rc2Affected 7.1.0-rc3Affected 7.1.0-rc4Affected 7.1.0-rc5Affected 7.1.0-rc6Affected

References

VDB-360908 | funadmin Frontend Chunked Upload Endpoint UploadService.php chunkUpload unrestricted uploadvdb-entrytechnical-description
VDB-360908 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
Submit #807559 | FunAdmin v<=V7.1.0-rc6 Unrestricted Uploadthird-party-advisory
https://gitee.com/funadmin/funadmin/issues/IJ8NXTexploitissue-tracking
https://gitee.com/funadmin/funadmin/pulls/59patch
https://gitee.com/funadmin/funadmin/product

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