CVE-2026-88621 Path traversal in n/a
An authenticated administrator can delete arbitrary files in the application directory by manipulating upload filenames, leading to data loss or denial of service.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-88621?
CVE-2026-88621 is a low-severity path traversal vulnerability in n/a, published on 15 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
OneNav v1.2.4 contains an authenticated arbitrary file deletion vulnerability in the Api::upload() method in class/Api.php. An authenticated administrator can submit a non-HTML upload filename matching an existing file in the application's working directory. The application passes the user-controlled filename to unlink() when rejecting the upload, potentially causing file deletion and denial of service.
Weakness: CWE-706
Which versions are affected by CVE-2026-88621?
How do I fix CVE-2026-88621?
No fix has been published for CVE-2026-88621 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-2026-88621 being exploited?
There is no known exploitation of CVE-2026-88621 in the wild and no public exploit code.
Sources
Also known as GHSA-52c3-83c9-5h54.