CVE-2026-96258 onSite internet GmbH Auktion NG Auktionssoftware Public Password Reset Endpoint forgotpasswd.html cross site scripting
Remote attackers can execute arbitrary scripts via the email parameter in the public password reset endpoint of Auktion NG Auktionssoftware.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-96258?
CVE-2026-96258 is a medium-severity cross-site scripting vulnerability in onSite internet GmbH Auktion NG Auktionssoftware, published on 23 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A vulnerability has been found in onSite internet GmbH Auktion NG Auktionssoftware up to 20260722. This affects an unknown part of the file /forgotpasswd.html of the component Public Password Reset Endpoint. The manipulation of the argument email leads to cross site scripting. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-96258?
How do I fix CVE-2026-96258?
No fix has been published for CVE-2026-96258 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-96258 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-96258 exists.
Sources
Also known as GHSA-jpxq-rxwr-5478.