CVE-2026-34607Public exploitNetwork attack vector

Remote code execution via unsanitized ZIP entry names

Published Apr 3, 2026 · Updated Apr 3, 2026

Path traversal in emlog 2.6.2 and earlier allows remote authenticated users to execute code by uploading a crafted ZIP archive. The emUnZip() function in include/lib/common.php passes attacker-controlled ZIP entry names directly to ZipArchive::extractTo() without rejecting ../ traversal sequences. Administrative access to a plugin, template, or backup-import upload path is required; successful extraction can overwrite server files and place a PHP web shell.

CVSS severity7.2
High
EPSS probability0.87%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Path traversal in emlog 2.6.2 and earlier allows remote authenticated users to execute code by uploading a crafted ZIP archive. The emUnZip() function in include/lib/common.php passes attacker-controlled ZIP entry names directly to ZipArchive::extractTo() without rejecting ../ traversal sequences. Administrative access to a plugin, template, or backup-import upload path is required; successful extraction can overwrite server files and place a PHP web shell.

The record

CVE
CVE-2026-34607
Published
Apr 3, 2026
Updated
Apr 3, 2026
Vendor
emlog
Product
emlog
Classifications
CWE-22, T1505.003
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=<= 2.6.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

emlog · emlogversion=<= 2.6.2

Published CVSS scores

7.2GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1505.003Server Software Component: Web Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo