AzuraCast: Path Traversal in `currentDirectory` Parameter Enables Remote Code Execution via Media Upload
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| AzuraCast | AzuraCast | before 0.23.6 | 0.23.6 | Patch available | CNA |
| — | azuracast/azuracast (Packagist) | before 0.23.6 | 0.23.6 | Patch available | GHSA-vp2f-cqqp-478j |
- AzuraCast VendorAzuraCast Affected before 0.23.6 Fixed in 0.23.6 Patch available CNA
- azuracast/azuracast (Packagist) Vendor— Affected before 0.23.6 Fixed in 0.23.6 Patch available GHSA-vp2f-cqqp-478j
Remediation
- Fix · CNA AzuraCast (AzuraCast) Fixed in 0.23.6
- Fix · GHSA-vp2f-cqqp-478j azuracast/azuracast (Packagist) Fixed in 0.23.6 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-42605
- 2026-10-03 Alias added: GHSA-vp2f-cqqp-478j
References
More Azuracast vulnerabilities
- TI-2023-02372 Improper Restriction of Excessive Authentication Attempts in azuracast/azuracast CVSS 3.1CRITICAL 9.8
- TI-2026-30886 AzuraCast: Password Reset Poisoning via Untrusted X-Forwarded-Host Header Leads to Account Takeover and 2FA Bypass CVSS 3.1HIGH 8.8
- TI-2023-02055 Cross-site Scripting (XSS) - Stored in azuracast/azuracast CVSS 3.1MEDIUM 4.8
- TI-2025-41433 AzuraCast Vulnerable to Pre-Auth File Deletion & Admin RCE CVSS 3.1LOW 3.7
Sources
- CVE-2026-42605 · CVE Program
- CVE-2026-42605 · NVD
- FIRST EPSS
- GHSA-vp2f-cqqp-478j · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences