CVE-2026-34607 Emlog: Path Traversal in emUnZip() allows arbitrary file write leading to RCE
An authenticated admin can exploit a path traversal in Emlog's ZIP extraction to write arbitrary files, achieving remote code execution.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-34607?
CVE-2026-34607 is a high-severity path traversal vulnerability in Emlog Emlog, published on 3 Apr 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Emlog is an open source website building system. In versions 2.6.2 and prior, a path traversal vulnerability exists in the emUnZip() function (include/lib/common.php:793). When extracting ZIP archives (plugin/template uploads, backup imports), the function calls $zip->extractTo($path) without sanitizing ZIP entry names. An authenticated admin can upload a crafted ZIP containing entries with ../ sequences to write arbitrary files to the server filesystem, including PHP webshells, achieving Remote Code Execution (RCE). At time of publication, there are no publicly available patches.
Weakness: CWE-22
Which versions are affected by CVE-2026-34607?
It affects 1 product.
Products include Emlog Emlog.
How do I fix CVE-2026-34607?
No fix has been published for CVE-2026-34607 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-2026-34607 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34607 exists.
Other vulnerabilities in Emlog Emlog
Sources
Also known as GHSA-2jg8-rmhm-xv9m.