Vulnerability · Published Apr 3, 2026 · Assigned by GitHub_M

CVE-2026-34607Emlog: Path Traversal in emUnZip() allows arbitrary file write leading to RCE

High 7.2

In plain English

A high-severity path traversal in emlog from emlog. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% of all known vulnerabilities).

Severity (CVSS 3.1)7.2High

Exploit odds (30 days)0.9%top 40.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
emlog	emlog	<= 2.6.2

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References

https://github.com/emlog/emlog/security/advisories/GHSA-2jg8-rmhm-xv9m x_refsource_CONFIRM