CVE-2024-49366 Nginx UI's json field can construct a directory traversal payload, causing arbitrary files to be written
Attackers can write arbitrary files to the server via path traversal in Nginx UI, potentially leading to privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-49366?
CVE-2024-49366 is a high-severity path traversal vulnerability in 0xJacky nginx-ui, published on 21 Oct 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Nginx UI is a web user interface for the Nginx web server. Nginx UI v2.0.0-beta.35 and earlier gets the value from the json field without verification, and can construct a value value in the form of `../../`. Arbitrary files can be written to the server, which may result in loss of permissions. Version 2.0.0-beta.26 fixes the issue.
Weakness: CWE-22
Which versions are affected by CVE-2024-49366?
It affects 1 product.
Products include Nginxui Nginx Ui.
How do I fix CVE-2024-49366?
No fix has been published for CVE-2024-49366 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-2024-49366 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-49366 exists.
Other vulnerabilities in 0xJacky nginx-ui
- CVE-2026-33032 Nginx UI: Unauthenticated MCP Endpoint Allows Remote Nginx Takeover
- CVE-2026-27944 Nginx UI: Unauthenticated Backup Download with Encryption Key Disclosure
- CVE-2024-23827 Nginx-UI arbitrary file write through the Import Certificate feature
- CVE-2026-107806 Nginx UI: Authenticated Remote Code Execution via Backup Restore App Config Overwrite
- CVE-2026-33026 nginx-ui Backup Restore Allows Tampering with Encrypted Backups
Sources
Also known as GHSA-prv4-rx44-f7jr.