CVE-2026-16451 zsadmin2025 ZS-Admin com.zs.file.controller.SysFileController upload unrestricted upload
Remote attackers can upload arbitrary files via the SysFileController upload endpoint, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-16451?
CVE-2026-16451 is a medium-severity vulnerability in zsadmin2025 ZS-Admin, published on 21 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Which versions are affected by CVE-2026-16451?
How do I fix CVE-2026-16451?
No fix has been published for CVE-2026-16451 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-16451 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-16451 exists.
Sources
Also known as GHSA-gm6p-5jmf-36cx.