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I. Basic Information for CVE-2025-6518
Vulnerability Information

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Vulnerability Title
PySpur-Dev pyspur Jinja2 Template single_llm_call.py SingleLLMCallNode special elements used in a template engine
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was found in PySpur-Dev pyspur up to 0.1.18. It has been classified as critical. Affected is the function SingleLLMCallNode of the file backend/pyspur/nodes/llm/single_llm_call.py of the component Jinja2 Template Handler. The manipulation of the argument user_message leads to improper neutralization of special elements used in a template engine. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-1336
Source: NVD (National Vulnerability Database)
Vulnerability Title
PySpur 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PySpur是PySpur开源的一个代理工作流的可视化游乐场:迭代代理的速度提高10倍。 PySpur 0.1.18及之前版本存在安全漏洞,该漏洞源于对文件backend/pyspur/nodes/llm/single_llm_call.py中参数user_message的错误操作导致模板引擎特殊元素中和不当。
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
VendorProductAffected VersionsCPESubscribe
PySpur-Devpyspur 0.1.0 -
II. Public POCs for CVE-2025-6518
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III. Intelligence Information for CVE-2025-6518
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