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CVE-2026-13504— code-projects Project Management System Mail Compose mail.php cross site scripting

Quick assessment

Affected
code-projects Project Management System
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.

Code-Projects project management system是Code-Projects组织的项目管理软件。 Code-Projects Project Management System 1.0版本存在安全漏洞，该漏洞源于文件/mail.php中Mail Compose Page组件存在跨站脚本攻击。

CVSS 3.5 · Low EPSS 0.35% · P26

Affected Version Matrix 1

VendorProduct Version RangeStatus
code-projects Project Management System 1.0 affected
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I. Basic Information for CVE-2026-13504

Vulnerability Information
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Vulnerability Title
code-projects Project Management System Mail Compose mail.php cross site scripting
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in code-projects Project Management System 1.0. This vulnerability affects unknown code of the file /mail.php of the component Mail Compose Page. Such manipulation leads to cross site scripting. The attack may be performed from remote. The exploit has been disclosed to the public and may be used.
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
Code-Projects Project Management System 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Code-Projects project management system是Code-Projects组织的项目管理软件。 Code-Projects Project Management System 1.0版本存在安全漏洞，该漏洞源于文件/mail.php中Mail Compose Page组件存在跨站脚本攻击。
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

Vendor Product Affected Versions CPE Subscribe
code-projects Project Management System 1.0 cpe:2.3:a:code-projects:project_management_system:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-13504

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-13504

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Other References for CVE-2026-13504 (1)

IV. Related Vulnerabilities

Same product: Project Management System
Same vendor: code-projects
Same weakness: CWE-79

V. Comments for CVE-2026-13504

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