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I. Basic Information for CVE-2026-4494
Vulnerability Information

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Vulnerability Title
atjiu pybbs TopicApiController.java create cross site scripting
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was identified in atjiu pybbs 6.0.0. This affects the function create of the file src/main/java/co/yiiu/pybbs/controller/api/TopicApiController.java. The manipulation leads to cross site scripting. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Vulnerability Title
pybbs 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
pybbs是iuiu个人开发者的一个Java开发的社区平台。 pybbs 6.0.0版本存在代码注入漏洞,该漏洞源于文件src/main/java/co/yiiu/pybbs/controller/api/TopicApiController.java中函数create存在跨站脚本攻击。
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
VendorProductAffected VersionsCPESubscribe
atjiupybbs 6.0.0 -
II. Public POCs for CVE-2026-4494
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III. Intelligence Information for CVE-2026-4494
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