CVE-2025-63709

5.4 mediumEPSS 0.3%

Medium (5.4) in chuck24 simple to-do list system. EPSS 0.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

5.4 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 16% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2025-11-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

chuck24:simple_to-do_list_system

References

https://github.com/floccocam-cpu/CVE-Research-2025/tree/main/CVE-2025-63709
https://www.sourcecodester.com/php/17897/simple-do-list-system-using-php.html

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