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TI-2017-14129 Aliases CVE-2017-20063GHSA-mwh6-g9wx-xcx3

Elefant CMS File Upload drop privileges management

Priority HIGH 71CWE-269Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation, Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-269 and CWE-434.

Summary

A vulnerability was found in Elefant CMS 1.3.12-RC. It has been classified as critical. Affected is an unknown function of the file /filemanager/upload/drop of the component File Upload. The manipulation leads to improper privilege management. It is possible to launch the attack remotely. Upgrading to version 1.3.13 is able to address this issue. It is recommended to upgrade the affected component.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00865 58th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed elefant/cms (Packagist): 1.3.13

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ElefantCMS1.3.12-RC—No fix listedCNA
—elefant/cms (Packagist)before 1.3.131.3.13Patch availableGHSA-mwh6-g9wx-xcx3
  • CMS VendorElefant Affected 1.3.12-RC Fixed in — No fix listed CNA
  • elefant/cms (Packagist) Vendor— Affected before 1.3.13 Fixed in 1.3.13 Patch available GHSA-mwh6-g9wx-xcx3

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:elefantcms:elefant_cms:1.3.12:rc:*:*:*:*:*:*1.3.12 rcVulnerableElefant
  • cpe:2.3:a:elefantcms:elefant_cms:1.3.12:rc:*:*:*:*:*:* Versions 1.3.12 rc Vulnerable ·Elefant

Remediation

  • Fix · GHSA-mwh6-g9wx-xcx3 elefant/cms (Packagist) Fixed in 1.3.13 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-20063
  2. 2026-10-03 Alias added: GHSA-mwh6-g9wx-xcx3

References

Exploit 1

Advisory 1

Other 1

  • TI-2017-14130 Elefant CMS layout code injection CVSS 3.1HIGH 8.8
  • TI-2017-14128 Elefant CMS cross-site request forgery CVSS 3.1HIGH 8.8
  • TI-2017-14123 Elefant CMS Persistent cross site scriting CVSS 3.1MEDIUM 6.1
  • TI-2017-14127 Elefant CMS extended Reflected cross site scriting CVSS 3.1MEDIUM 5.4
  • TI-2017-14126 Elefant CMS Blog Post Persistent cross site scriting CVSS 3.1MEDIUM 5.4
  • TI-2017-14125 Elefant CMS Title Persistent cross site scriting CVSS 3.1MEDIUM 5.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences