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CVE-2026-5209— SourceCodester Leave Application System User Management cross site scripting

Quick assessment

Affected
SourceCodester Leave Application 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.

SourceCodester Leave Application System是SourceCodester开源的一个休假申请系统。 SourceCodester Leave Application System 1.0版本存在代码注入漏洞，该漏洞源于用户管理处理程序存在未知功能问题，可能导致跨站脚本攻击。

CVSS 2.4 · Low EPSS 0.35% · P26
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I. Basic Information for CVE-2026-5209

Vulnerability Information
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Vulnerability Title
SourceCodester Leave Application System User Management cross site scripting
Source: CVE Program / CVE List V5
Vulnerability Description
A security vulnerability has been detected in SourceCodester Leave Application System 1.0. Affected by this issue is some unknown functionality of the component User Management Handler. Such manipulation leads to cross site scripting. The attack may be launched remotely. The exploit has been disclosed publicly and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/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
SourceCodester Leave Application System 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SourceCodester Leave Application System是SourceCodester开源的一个休假申请系统。 SourceCodester Leave Application System 1.0版本存在代码注入漏洞，该漏洞源于用户管理处理程序存在未知功能问题，可能导致跨站脚本攻击。
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
SourceCodester Leave Application System 1.0 -

II. Public POCs for CVE-2026-5209

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III. Intelligence Information for CVE-2026-5209

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Other References for CVE-2026-5209 (1)

Same Patch Batch · SourceCodester · 2026-03-31 · 6 CVEs total

CVE-2026-5179 7.3 HIGH SourceCodester Simple Doctors Appointment System login.php sql injection
CVE-2026-5180 7.3 HIGH SourceCodester Simple Doctors Appointment System ajax.php sql injection
CVE-2026-5182 7.3 HIGH SourceCodester Teacher Record System Parameter sql injection
CVE-2026-5210 7.3 HIGH SourceCodester Leave Application System file inclusion
CVE-2026-5181 6.3 MEDIUM SourceCodester Simple Doctors Appointment System ajax.php unrestricted upload

IV. Related Vulnerabilities

Same product: Leave Application System
Same vendor: SourceCodester
Same weakness: CWE-79

V. Comments for CVE-2026-5209

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