CVE-2026-44258 efw4.X: Path Traversal via Unchecked dst Parameter leads to Remote Code Execution
Attackers can bypass path traversal checks to move files to arbitrary locations, potentially leading to remote code execution in efw4.X.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-44258?
CVE-2026-44258 is a critical path traversal vulnerability in efwGrp efw4.X, published on 12 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-78
Which versions are affected by CVE-2026-44258?
How do I fix CVE-2026-44258?
No fix has been published for CVE-2026-44258 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-44258 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44258 exists.
Sources
Also known as GHSA-9g5w-qw96-jr3x.