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.

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History

Fri, 03 Apr 2026 22:45:00 +0000

Type Values Removed Values Added
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.
Title Emlog: Path Traversal in emUnZip() allows arbitrary file write leading to RCE
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-04-03T22:35:56.664Z

Reserved: 2026-03-30T17:15:52.500Z

Link: CVE-2026-34607

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-03T23:17:04.423

Modified: 2026-04-03T23:17:04.423

Link: CVE-2026-34607

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses