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CVE-2025-9796— thinkgem JeeSite EncodeUtils.java decodeUrl2 cross site scripting

Quick assessment

Affected
thinkgem JeeSite
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.

Thinkgem JeeSite是中国卓源（Thinkgem）公司的一套开源的Java EE企业级快速开发平台。该平台包括系统权限组件、数据权限组件、数据字典组件、核心工具组件、视图操作组件、工作流组件和代码生成组件等。 Thinkgem JeeSite 5.12.1及之前版本存在安全漏洞，该漏洞源于对文件common/src/main/java/com/jeesite/common/codec/EncodeUtils.java中函数decodeUrl2的错误操作导致跨站脚本攻击。

CVSS 3.5 · Low EPSS 0.36% · P28
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I. Basic Information for CVE-2025-9796

Vulnerability Information
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Vulnerability Title
thinkgem JeeSite EncodeUtils.java decodeUrl2 cross site scripting
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in thinkgem JeeSite up to 5.12.1. This affects the function decodeUrl2 of the file common/src/main/java/com/jeesite/common/codec/EncodeUtils.java. The manipulation results in cross site scripting. It is possible to launch the attack remotely. The exploit has been made public and could be used. Upgrading to version 5.13.0 mitigates this issue. The patch is identified as 63773c97a56bdb3649510e83b66c16db4754965b. Upgrading the affected component is recommended.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Thinkgem JeeSite 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Thinkgem JeeSite是中国卓源（Thinkgem）公司的一套开源的Java EE企业级快速开发平台。该平台包括系统权限组件、数据权限组件、数据字典组件、核心工具组件、视图操作组件、工作流组件和代码生成组件等。 Thinkgem JeeSite 5.12.1及之前版本存在安全漏洞，该漏洞源于对文件common/src/main/java/com/jeesite/common/codec/EncodeUtils.java中函数decodeUrl2的错误操作导致跨站脚本攻击。
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
thinkgem JeeSite 5.12.0 -

II. Public POCs for CVE-2025-9796

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III. Intelligence Information for CVE-2025-9796

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IV. Related Vulnerabilities

Same product: JeeSite
Same vendor: thinkgem
Same weakness: CWE-79

V. Comments for CVE-2025-9796

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