EFence developed by Thinking Software Technology has an Arbitrary File Upload vulnerability. Authenticated remote attackers can upload and execute web shell backdoors, thereby enabling arbitrary code execution on the server.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Thinking Software Technology Efence unaffected
Version Status Constraints
0 affected ≤ 1.2.66 DB Ver:56

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

Please update to version 1.2.67 DB Ver:57 or later

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.twcert.org.tw/en/cp-139-11137-c6e5f-2.html cve-icon
https://www.twcert.org.tw/tw/cp-132-11133-e0167-1.html cve-icon
History

Wed, 26 Aug 2026 08:45:00 +0000

Type Values Removed Values Added
Description EFence developed by Thinking Software Technology has an Arbitrary File Upload vulnerability. Authenticated remote attackers can upload and execute web shell backdoors, thereby enabling arbitrary code execution on the server.
Title Thinking Software Technology｜Efence - Arbitrary File Upload
Weaknesses CWE-434
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: twcert

Published:

Updated: 2026-08-26T08:28:14.081Z

Reserved: 2026-08-26T05:58:53.079Z

Link: CVE-2026-80237

cve-icon Vulnrichment

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cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-26T09:30:04Z

Weaknesses