CVE-2026-5251 z-9527 admin User Update Endpoint user.js dynamically-determined object attributes
Attackers can escalate privileges to admin by manipulating the isAdmin argument in the user update endpoint of z-9527 admin.
- 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-2026-5251?
CVE-2026-5251 is a medium-severity vulnerability in z-9527 admin, published on 1 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was identified in z-9527 admin 1.0/2.0. This impacts an unknown function of the file /server/routes/user.js of the component User Update Endpoint. Such manipulation of the argument isAdmin with the input 1 leads to dynamically-determined object attributes. It is possible to launch the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-5251?
How do I fix CVE-2026-5251?
No fix has been published for CVE-2026-5251 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-5251 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5251 exists.
Sources
Also known as GHSA-vwp7-r9vq-p5wq.