CVE-2026-80235— Thinking Software Technology｜EFence - Arbitrary File Upload
Quick assessment
Affected
Thinking Software Technology EFence
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Thinking Software Technology Efence是Thinking Software Technology公司的一款网络安全防护产品。 Thinking Software Technology Efence 1.2.66 DB Ver:56及之前版本存在任意文件上传漏洞，该漏洞源于任意文件上传，可能导致未经身份验证的远程攻击者上传并执行Web Shell后门，从而实现任意代码执行。
Possible ATT&CK Techniques 2 AI
T1195 · Supply Chain Compromise T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Thinking Software Technology | EFence | ≤ 1.2.66 DB Ver:56 |
affected |
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I. Basic Information for CVE-2026-80235
Vulnerability Information
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Vulnerability Title
Thinking Software Technology｜EFence - Arbitrary File Upload
Source: CVE Program / CVE List V5
Vulnerability Description
EFence developed by Thinking Software Technology has an Arbitrary File Upload vulnerability. Unauthenticated remote attackers can upload and execute web shell backdoors, thereby enabling arbitrary code execution on the server.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
Thinking Software Technology Efence 任意文件上传漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Thinking Software Technology Efence是Thinking Software Technology公司的一款网络安全防护产品。 Thinking Software Technology Efence 1.2.66 DB Ver:56及之前版本存在任意文件上传漏洞，该漏洞源于任意文件上传，可能导致未经身份验证的远程攻击者上传并执行Web Shell后门，从而实现任意代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Thinking Software Technology | EFence | 0 ~ 1.2.66 DB Ver:56 | - |
|
II. Public POCs for CVE-2026-80235
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-80235 (2)
Same Patch Batch · Thinking Software Technology · 2026-08-26 · 3 CVEs total
| CVE-2026-80237 | 8.8 HIGH | Thinking Software Technology｜Efence - Arbitrary File Upload |
| CVE-2026-80236 | 8.2 HIGH | Thinking Software Technology｜Efence - SQL Injection |
IV. Related Vulnerabilities
Same product: EFence
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Same weakness: CWE-434
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V. Comments for CVE-2026-80235
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