CVE-2026-46397 haxcms-php Local File Inclusion via saveOutline API Location Parameter v2.0
Authenticated low-privileged users can read arbitrary server files via Local File Inclusion in the saveOutline API endpoint.
- 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-2026-46397?
CVE-2026-46397 is a medium-severity path traversal vulnerability in haxtheweb haxcms-nodejs, published on 5 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
HAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0, an Authenticated Local File Inclusion (LFI) vulnerability in the HAXCMS saveOutline endpoint allows a low-privileged user to read arbitrary files on the server by manipulating the location field written into site.json. This enables attackers to exfiltrate sensitive system files such as /etc/passwd, application secrets, or configuration files accessible to the web server (www-data). Version 26.0.0 patches the issue.
Which versions are affected by CVE-2026-46397?
How do I fix CVE-2026-46397?
No fix has been published for CVE-2026-46397 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-46397 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-46397 exists.