Vulnerability · Published Jul 21, 2026 · Assigned by VulDB
CVE-2026-16451zsadmin2025 ZS-Admin com.zs.file.controller.SysFileController upload unrestricted upload
Medium 6.3
In plain English
A medium-severity unrestricted file upload in ZS-Admin from zsadmin2025. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).
Official description
A security flaw has been discovered in zsadmin2025 ZS-Admin up to b52e14536d59fda11e56e2536a1c32e82a38cead. This impacts an unknown function of the file /api/system/file/upload of the component com.zs.file.controller.SysFileController. Performing a manipulation of the argument File results in unrestricted upload. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available. The project was informed of the problem early through an issue report but has not responded yet.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| zsadmin2025 | ZS-Admin | b52e14536d59fda11e56e2536a1c32e82a38cead |
Weakness: CWE-434, CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
References
- VDB-380830 | zsadmin2025 ZS-Admin com.zs.file.controller.SysFileController upload unrestricted upload vdb-entry, technical-description
- VDB-380830 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- CVE-2026-16451 | CVE Analysis and Report third-party-advisory
- Submit #858792 | zsadmin ZS-Admin <=1.0.0 Unrestricted Upload third-party-advisory
- https://github.com/zsadmin2025/zs-admin-java/issues/6 exploit, issue-tracking