{"id":"CVE-2026-88621","title":"OneNav v1.2.4 contains an authenticated arbitrary file deletion vulnerability in the Api::upload() method in class/Api.php","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…","severity":"low","cvss":2.7,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N","cwe":["CWE-706"],"published":"2026-09-15","updated":"2026-09-22","sourceUpdated":"2026-09-22T20:00:03.713","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-88621","references":[{"url":"https://github.com/helloxz/onenav","label":"cve@mitre.org"},{"url":"https://github.com/returnwrong/returnwrong-security-advisories/blob/main/CVE-2026-88621.md","label":"cve@mitre.org"}],"tags":["nvd","cve.org"],"epss":0.00308,"epssPercentile":0.21115,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-22T15:00:39.990691Z"},"ingestedAt":"2026-09-15T16:40:03.391Z","slug":"CVE-2026-88621","body":"## Overview\n\nOneNav 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":15,"depthScoreParts":{"impact":14.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":209182,"id":"CVE-2026-88621","ts":1790093220210,"field":"cvss","old":null,"new":"2.7"},{"seq":209181,"id":"CVE-2026-88621","ts":1790093220210,"field":"severity","old":"none","new":"low"}]}