CVE-2025-63709
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-11-10

Last updated on: 2025-12-01

Assigner: MITRE

Description
A Cross-Site Scripting (XSS) vulnerability exists in SourceCodester Simple To-Do List System 1.0 in the "Add Tasks" text input. An authenticated user can submit HTML/JavaScript that is not correctly sanitized or encoded on output. The injected script is stored and later rendered in the browser of any user who views the task, allowing execution of arbitrary script in the context of the victim's browser.
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Meta Information
Published
2025-11-10
Last Modified
2025-12-01
Generated
2026-06-16
AI Q&A
2025-11-10
EPSS Evaluated
2026-06-15
NVD
CVE-2025-63709
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
chuck24 simple_to-do_list_system 1.0
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
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Executive Summary

This vulnerability is a Cross-Site Scripting (XSS) issue in the SourceCodester Simple To-Do List System 1.0. It occurs in the 'Add Tasks' text input where an authenticated user can submit HTML or JavaScript code that is not properly sanitized or encoded. This malicious script is stored and later executed in the browsers of users who view the task, allowing arbitrary script execution in their browser context.

Impact Analysis

This vulnerability can allow attackers to execute arbitrary scripts in the browsers of users who view the affected tasks. This can lead to theft of sensitive information such as cookies or session tokens, unauthorized actions performed on behalf of the user, or other malicious activities that compromise user security and privacy.

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