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
emlog: emlog
References2
- github.com/emlog/emlog/security/advisories/GHSA-2jg8-rmhm-xv9m ExploitVendor Advisory
- github.com/emlog/emlog/security/advisories/GHSA-2jg8-rmhm-xv9m ExploitVendor Advisory
Metrics
- CVSS 3.1
-
7.2
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 60 · as of 12 November 2026
- CWE
- CWE-22
Could this be exploited in your environment?
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