efw4.X: Path Traversal via Unchecked dst Parameter leads to Remote Code Execution
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.
Summary
efw4.X is an Enterprise Framework for Web. Prior to 4.08.010, the elfinder_checkRisk function validates target and targets for path traversal and home containment, but does not validate the dst (destination) parameter used by elfinder_paste. An attacker can copy or move files from within the home directory to any arbitrary destination by setting dst to a base64-encoded traversal path. This bypasses the protected=true security control. This vulnerability is fixed in 4.08.010.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA efw4.X (efwGrp) Fixed in 4.08.010
Timeline
- 2026-10-02 Threatist record created from CVE-2026-44258
More efwGrp vulnerabilities
- TI-2026-32234 efw4.X: RCE via zipslip CVSS 4.0CRITICAL 9.3
- TI-2026-32237 efw4.X: readonly Flag Not Enforced Server-Side CVSS 3.1HIGH 8.1
- TI-2026-32236 efw4.X: Stored XSS via previewServlet CVSS 3.1MEDIUM 4.6
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences