CVE-2026-44258CWE-78

efw4.X: Path Traversal via Unchecked dst Parameter leads to Remote Code Execution

Critical · published May 12, 2026

CVSS v4.0
9.3
EPSS
0%
Percentile
39.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00471 · 39.8th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-05-12T21:05Z
EPSS history
Timeline
  • 12 MAY 21:05Z
    efw4.X: Path Traversal via Unchecked dst Parameter leads to Remote Code Execution
    cvelistv5