CVE-2025-63709
SourceCodester Simple To-Do List System XSS
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.
INFO
Published Date :
Nov. 10, 2025, 3:15 p.m.
Last Modified :
Dec. 1, 2025, 8:15 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | ||||
| CVSS 3.1 | MEDIUM | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Sanitize all data submitted via the 'Add Tasks' input.
- Encode all output displayed in the task view.
- Apply security updates to the system.
- Regularly audit input sanitization and output encoding.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-63709.
| URL | Resource |
|---|---|
| https://github.com/floccocam-cpu/CVE-Research-2025/tree/main/CVE-2025-63709 | Exploit Mitigation Third Party Advisory |
| https://www.sourcecodester.com/php/17897/simple-do-list-system-using-php.html | Product |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-63709 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-63709
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-63709 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-63709 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Dec. 01, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Removed CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N Added CWE CWE-79 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Nov. 18, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N -
Initial Analysis by [email protected]
Nov. 17, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Added CWE CWE-79 Added CPE Configuration OR *cpe:2.3:a:chuck24:simple_to-do_list_system:1.0:*:*:*:*:*:*:* Added Reference Type MITRE: https://github.com/floccocam-cpu/CVE-Research-2025/tree/main/CVE-2025-63709 Types: Exploit, Mitigation, Third Party Advisory Added Reference Type MITRE: https://www.sourcecodester.com/php/17897/simple-do-list-system-using-php.html Types: Product -
New CVE Received by [email protected]
Nov. 10, 2025
Action Type Old Value New Value Added 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. Added Reference https://github.com/floccocam-cpu/CVE-Research-2025/tree/main/CVE-2025-63709 Added Reference https://www.sourcecodester.com/php/17897/simple-do-list-system-using-php.html