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CVE-2022-50898— NanoCMS 0.4 - Remote Code Execution (RCE) (Authenticated)

Quick assessment

Affected
kalyan02 NanoCMS
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.

NanoCMS是kalyan02个人开发者的一个轻量级内容管理系统。 NanoCMS 0.4版本存在代码注入漏洞，该漏洞源于页面内容创建功能存在未经验证的文件上传漏洞，可能导致远程代码执行。

CVSS 8.8 · High EPSS 1.29% · P69

Possible ATT&CK Techniques 1 AI

T1505.003 · Web Shell
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I. Basic Information for CVE-2022-50898

Vulnerability Information
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Vulnerability Title
NanoCMS 0.4 - Remote Code Execution (RCE) (Authenticated)
Source: CVE Program / CVE List V5
Vulnerability Description
NanoCMS 0.4 contains an authenticated file upload vulnerability that allows remote code execution through unvalidated page content creation. Authenticated attackers can upload PHP files with arbitrary code to the server's pages directory by exploiting the page creation mechanism without proper input sanitization.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/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
NanoCMS 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NanoCMS是kalyan02个人开发者的一个轻量级内容管理系统。 NanoCMS 0.4版本存在代码注入漏洞，该漏洞源于页面内容创建功能存在未经验证的文件上传漏洞，可能导致远程代码执行。
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
kalyan02 NanoCMS 0.4 -

II. Public POCs for CVE-2022-50898

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 8871 chars
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In-depth vulnerability mechanism
Trigger conditions & impact
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2022-50898

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IV. Related Vulnerabilities

Same product: NanoCMS
Same vendor: kalyan02
Same weakness: CWE-434

V. Comments for CVE-2022-50898

Anonymous User
2026-01-15 06:09:04

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