CVE-2025-62780
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-11-10

Last updated on: 2025-12-31

Assigner: GitHub, Inc.

Description
changedetection.io is a free open source web page change detection tool. A Stored Cross Site Scripting is present in changedetection.io Watch update API in versions prior to 0.50.34 due to insufficient security checks. Two scenarios are possible. In the first, an attacker can insert a new watch with an arbitrary URL which really points to a web page. Once the HTML content is retrieved, the attacker updates the URL with a JavaScript payload. In the second, an attacker substitutes the URL in an existing watch with a new URL that is in reality a JavaScript payload. When the user clicks on *Preview* and then on the malicious link, the JavaScript malicious code is executed. Version 0.50.34 fixes the issue.
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Meta Information
Published
2025-11-10
Last Modified
2025-12-31
Generated
2026-05-07
AI Q&A
2025-11-11
EPSS Evaluated
2026-05-05
NVD
EUVD
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
changedetection changedetection to 0.50.34 (exc)
Helpful Resources
Exploitability
CWE
CWE Icon
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.
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability is a Stored Cross Site Scripting (XSS) issue in changedetection.io versions prior to 0.50.34. It occurs in the Watch update API due to insufficient security checks. An attacker can insert or modify a watch URL to include a JavaScript payload. When a user previews and clicks the malicious link, the JavaScript code executes, potentially compromising the user's session or data. The issue is fixed in version 0.50.34.


How can this vulnerability impact me? :

The vulnerability can lead to execution of malicious JavaScript code in the context of the user's browser when interacting with the changedetection.io application. This can result in unauthorized actions such as theft of user data, session hijacking, or other malicious activities that compromise the integrity and confidentiality of the user's information.


What immediate steps should I take to mitigate this vulnerability?

Upgrade changedetection.io to version 0.50.34 or later, as this version fixes the Stored Cross Site Scripting vulnerability in the Watch update API. Avoid clicking on suspicious Preview links or URLs in watches until the update is applied.


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