# CVE-2026-88621

## Summary

- **CVE ID:** CVE-2026-88621
- **Severity:** UNKNOWN
- **CVSS Score:** 0
- **CWE:** N/A
- **Published:** Sep 15, 2026
- **Last Modified:** Sep 16, 2026

## 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.

## Affected Products

- n/a — n/a (n/a)

## References

- [CNA](https://github.com/helloxz/onenav)
- [CNA](https://github.com/returnwrong/returnwrong-security-advisories/blob/main/CVE-2026-88621.md)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.19%
- **EPSS Percentile:** 8.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-17._