CVE-2026-88621

Summary

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 Software

Weaknesses

• n/a

References

• https://github.com/helloxz/onenav
• https://github.com/returnwrong/returnwrong-security-advisories/blob/main/CVE-2026-88621.md

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