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CVE-2026-11520— SourceCodester Inventory System header.php cross site scripting

Quick assessment

Affected
SourceCodester Inventory 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 Inventory System是SourceCodester开源的一个库存系统。 SourceCodester Inventory System 1.0版本存在跨站脚本漏洞，该漏洞源于文件header.php中的操作，可能导致跨站脚本。攻击者可远程发起攻击。

CVSS 3.5 · Low EPSS 0.25% · P15

Affected Version Matrix 1

VendorProduct Version RangeStatus
SourceCodester Inventory System 1.0 affected
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I. Basic Information for CVE-2026-11520

Vulnerability Information
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Vulnerability Title
SourceCodester Inventory System header.php cross site scripting
Source: CVE Program / CVE List V5
Vulnerability Description
A weakness has been identified in SourceCodester Inventory System 1.0. Affected by this issue is some unknown functionality of the file header.php. This manipulation causes cross site scripting. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. Multiple parameters might be affected.
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
SourceCodester Inventory System 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SourceCodester Inventory System是SourceCodester开源的一个库存系统。 SourceCodester Inventory System 1.0版本存在跨站脚本漏洞，该漏洞源于文件header.php中的操作，可能导致跨站脚本。攻击者可远程发起攻击。
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 Inventory System 1.0 cpe:2.3:a:sourcecodester:inventory_system:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-11520

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III. Intelligence Information for CVE-2026-11520

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Other References for CVE-2026-11520 (1)

Same Patch Batch · SourceCodester · 2026-06-08 · 13 CVEs total

CVE-2026-11471 7.3 HIGH SourceCodester Class and Exam Timetabling System index2.php sql injection
CVE-2026-11472 7.3 HIGH SourceCodester Class and Exam Timetabling System index1.php sql injection
CVE-2026-11482 7.3 HIGH SourceCodester Class and Exam Timetabling System archive5.php sql injection
CVE-2026-11483 7.3 HIGH SourceCodester Class and Exam Timetabling System archive4.php sql injection
CVE-2026-11484 7.3 HIGH SourceCodester Class and Exam Timetabling System archive3.php sql injection
CVE-2026-11485 7.3 HIGH SourceCodester Class and Exam Timetabling System archive2.php sql injection
CVE-2026-11486 7.3 HIGH SourceCodester Class and Exam Timetabling System archive1.php sql injection
CVE-2026-11501 7.3 HIGH SourceCodester Hospitals Patient Records Management System Master.php save_patient sql inj
CVE-2026-11519 6.3 MEDIUM SourceCodester Inventory System Account Creation users_handler.php improper authorization
CVE-2026-11515 5.3 MEDIUM SourceCodester Barangay Resident Profiling and Information Management System Password Rese
CVE-2026-11552 5.3 MEDIUM SourceCodester Onlne Examination & Learning Management System import_users.php hard-coded
CVE-2026-11518 4.3 MEDIUM SourceCodester Inventory System User Management users.php cross site scripting

IV. Related Vulnerabilities

Same product: Inventory System
Same vendor: SourceCodester
Same weakness: CWE-79

V. Comments for CVE-2026-11520

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