Path Traversal in Azuracast
CVE-2026-42605
AzuraCast is a self-hosted, all-in-one web radio management suite. Prior to version 0.23.6, the currentDirectory request parameter in the Flow.js media upload endpoint (POST /api/station/{station_id}/files/upload) is not sanitized for path traversal sequences. When combined with a local filesystem storage backend (the default), an authenticated user with media management permissions can write arbitrary files outside the station's media storage directory, achieving remote code execution by writing a PHP webshell to the web root. This issue has been patched in version 0.23.6.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.010 (62.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.010 · change: +0.002
Affected products
- Azuracast — versions < 0.23.6
Weakness classification (CWE)
References
- github.com/AzuraCast/AzuraCast/security/advisories/GHSA-vp2f-cqqp-478j (Exploit, Mitigation, Vendor Advisory)
- github.com/AzuraCast/AzuraCast/commit/18c793b4427eb49e67a2fea99a89f1c9d9dd808d (Patch)
- github.com/AzuraCast/AzuraCast/releases/tag/0.23.6 (Product)
Frequently asked questions
- What is CVE-2026-42605?
- CVE-2026-42605 is a high-severity vulnerability in Azuracast, classified under Path Traversal. CVSS score: 8.8/10. Published 2026-05-09.
- How severe is CVE-2026-42605?
- High severity. CVSS v3 base score is 8.8 out of 10.