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

Quick assessment

Affected
n/a funadmin
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

FunAdmin是FunAdmin开源的一个基于 ThinkPHP6+Layui 开发的轻量级高颜值后台开发系统。 FunAdmin 7.1.0-rc6及之前版本存在访问控制错误漏洞，该漏洞源于组件Frontend Chunked Upload Endpoint中文件app/common/service/UploadService.php的函数UploadService::chunkUpload对参数File操作导致无限制上传，攻击者可远程执行攻击。

CVSS 7.3 · High EPSS 0.50% · P40

Affected Version Matrix 6

VendorProduct Version RangeStatus
n/a funadmin 7.1.0-rc1 affected
7.1.0-rc2 affected
7.1.0-rc3 affected
7.1.0-rc4 affected
7.1.0-rc5 affected
7.1.0-rc6 affected
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I. Basic Information for CVE-2026-7733

Vulnerability Information
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Vulnerability Title
funadmin Frontend Chunked Upload Endpoint UploadService.php chunkUpload unrestricted upload
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
FunAdmin 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FunAdmin是FunAdmin开源的一个基于 ThinkPHP6+Layui 开发的轻量级高颜值后台开发系统。 FunAdmin 7.1.0-rc6及之前版本存在访问控制错误漏洞，该漏洞源于组件Frontend Chunked Upload Endpoint中文件app/common/service/UploadService.php的函数UploadService::chunkUpload对参数File操作导致无限制上传，攻击者可远程执行攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- funadmin 7.1.0-rc1 cpe:2.3:a:funadmin:funadmin:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-7733

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III. Intelligence Information for CVE-2026-7733

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Patches & Fixes for CVE-2026-7733 (1)

News Coverage for CVE-2026-7733 (1)

Vendor Pages for CVE-2026-7733 (1)

Same Patch Batch · n/a · 2026-05-04 · 17 CVEs total

CVE-2026-31205 5.7 MEDIUM Pluck CMS 跨站脚本漏洞
CVE-2026-7781 4.3 MEDIUM Open5GS amf-3gpp-access Endpoint nudm-handler.c udm_nudm_uecm_handle_amf_registration_upda
CVE-2026-7780 4.3 MEDIUM Open5GS smf-registrations Endpoint udm-sm.c udm_state_operational denial of service
CVE-2026-7779 4.3 MEDIUM Open5GS authentication-subscription Endpoint nudr-handler.c udm_nudr_dr_handle_subscriptio
CVE-2025-70069 Assimp 资源管理错误漏洞
CVE-2025-70067 Assimp 安全漏洞
CVE-2025-70070 Assimp 代码问题漏洞
CVE-2025-70072 Assimp 缓冲区错误漏洞
CVE-2026-36365 caesium-image-compressor 命令注入漏洞
CVE-2026-38669 WCMS 跨站脚本漏洞
CVE-2026-37461 GoBGP 缓冲区错误漏洞
CVE-2026-37458 FRRouting 输入验证错误漏洞
CVE-2025-70071 Assimp 资源管理错误漏洞
CVE-2026-37459 FRRouting 资源管理错误漏洞
CVE-2026-38751 OpenSTAManager 代码问题漏洞
CVE-2025-67796 Rdiffweb 访问控制错误漏洞

IV. Related Vulnerabilities

Same product: funadmin
Same vendor: n/a
Same weakness: CWE-434

V. Comments for CVE-2026-7733

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