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CVE-2026-2113— yuan1994 tpadmin WebUploader preview.php deserialization

Quick assessment

Affected
yuan1994 tpadmin
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

tpAdmin是Ethan个人开发者的一个基于ThinkPHP5的管理后台。 tpadmin 1.3.12及之前版本存在代码问题漏洞，该漏洞源于对组件WebUploader中库文件/public/static/admin/lib/webuploader/0.1.5/server/preview.php的错误操作，可能导致反序列化。

CVSS 7.3 · High EPSS 2.44% · P84

Public Exploits 1

Nuclei · 1 CVE-2026-2113.yaml [template]
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I. Basic Information for CVE-2026-2113

Vulnerability Information
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Vulnerability Title
yuan1994 tpadmin WebUploader preview.php deserialization
Source: CVE Program / CVE List V5
Vulnerability Description
A security vulnerability has been detected in yuan1994 tpadmin up to 1.3.12. This affects an unknown part in the library /public/static/admin/lib/webuploader/0.1.5/server/preview.php of the component WebUploader. The manipulation leads to deserialization. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. This vulnerability only affects products that are no longer supported by the maintainer.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
tpAdmin 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
tpAdmin是Ethan个人开发者的一个基于ThinkPHP5的管理后台。 tpadmin 1.3.12及之前版本存在代码问题漏洞，该漏洞源于对组件WebUploader中库文件/public/static/admin/lib/webuploader/0.1.5/server/preview.php的错误操作，可能导致反序列化。
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
yuan1994 tpadmin 1.3.0 -

II. Public POCs for CVE-2026-2113

# POC Description Source Link Shenlong Link
1 A Remote Code Execution vulnerability allowing unauthenticated attackers to upload arbitrary PHP files directly to the web server. This results in immediate Remote Code Execution with web server privileges. https://github.com/MaxMnMl/tpadmin-CVE-2026-2113-poc POC Details
2 yuan1994 tpadmin up to version 1.3.12 is vulnerable to Remote Code Execution via unrestricted file upload in the WebUploader preview component (/public/static/admin/lib/webuploader/0.1.5/server/preview.php). An unauthenticated remote attacker can submit base64-encoded PHP payloads leading to arbitrary code execution with web server privileges. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-2113.yaml POC Details
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III. Intelligence Information for CVE-2026-2113

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Vendor Advisories for CVE-2026-2113 (1)

IV. Related Vulnerabilities

Same product: tpadmin
Same vendor: yuan1994
Same weakness: CWE-502

V. Comments for CVE-2026-2113

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