dgtlmoon changedetection.io up to 0.50.33 cross site scripting

Summaryinfo

A vulnerability categorized as problematic has been discovered in dgtlmoon changedetection.io up to 0.50.33. This issue affects some unknown processing. Such manipulation leads to cross site scripting. This vulnerability is listed as CVE-2025-62780. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in dgtlmoon changedetection.io up to 0.50.33 and classified as problematic. Affected by this issue is an unknown functionality. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2025-62780 since 10/22/2025. The exploitation is known to be easy. The attack may be launched remotely. Additional levels of successful authentication are necessary for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 0.50.34 eliminates this vulnerability.

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Productinfo

Vendor

• dgtlmoon

Name

• changedetection.io

Version

• 0.50.0
• 0.50.1
• 0.50.2
• 0.50.3
• 0.50.4
• 0.50.5
• 0.50.6
• 0.50.7
• 0.50.8
• 0.50.9
• 0.50.10
• 0.50.11
• 0.50.12
• 0.50.13
• 0.50.14
• 0.50.15
• 0.50.16
• 0.50.17
• 0.50.18
• 0.50.19
• 0.50.20
• 0.50.21
• 0.50.22
• 0.50.23
• 0.50.24
• 0.50.25
• 0.50.26
• 0.50.27
• 0.50.28
• 0.50.29
• 0.50.30
• 0.50.31
• 0.50.32
• 0.50.33

Website

• Product: https://github.com/dgtlmoon/changedetection.io/

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