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CVE-2026-90492— webgjc web_robot web.py controller_recover os command injection

Quick assessment

Affected
webgjc web_robot
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.

在 webgjc web_robot 2.4.0/2.5.0/2.8.0 中发现了一个安全漏洞。受影响的元素是文件 py/web.py 中的 controller_listen/controller_recover 函数。对参数 case_name 的操纵可导致操作系统命令注入。该攻击可远程发起。此漏洞的利用方式已公开披露并可能被使用。厂商此前已就该披露事宜进行联系，但至今未作出任何回应。

CVSS 6.3 · Medium
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I. Basic Information for CVE-2026-90492

Vulnerability Information
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Vulnerability Title
webgjc web_robot web.py controller_recover os command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A security vulnerability has been detected in webgjc web_robot 2.4.0/2.5.0/2.8.0. The affected element is the function controller_listen/controller_recover of the file py/web.py. The manipulation of the argument case_name leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
webgjc web_robot 2.4.0 cpe:2.3:a:webgjc:web_robot:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-90492

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III. Intelligence Information for CVE-2026-90492

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IV. Related Vulnerabilities

Same weakness: CWE-78

V. Comments for CVE-2026-90492

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