changedetection.io Cross-site Scripting vulnerability
Summary
Input in parameter notification_urls is not processed resulting in javascript execution in the application
Details
changedetection.io version: v0.45.21
https://github.com/dgtlmoon/changedetection.io/blob/0.45.21/changedetectionio/forms.py#L226
for server_url in field.data:
if not apobj.add(server_url):
message = field.gettext('\'%s\' is not a valid AppRise URL.' % (server_url))
raise ValidationError(message)PoC
Setting > ADD Notification URL List
"><img src=x onerror=alert(document.domain)>Requests
Impact
A reflected XSS vulnerability happens when the user input from a URL or POST data is reflected on the page without being stored, thus allowing the attacker to inject malicious content
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | changedetection-io | < 0.45.22 | 0.45.22 |
References
- https://github.com/dgtlmoon/changedetection.io/security/advisories/GHSA-pwgc-w4x9-gw67
- https://nvd.nist.gov/vuln/detail/CVE-2024-34061
- https://github.com/dgtlmoon/changedetection.io/commit/c0f000b1d1ce03733460805dbbedde445fe2c762
- https://github.com/dgtlmoon/changedetection.io
- https://github.com/dgtlmoon/changedetection.io/blob/0.45.21/changedetectionio/forms.py#L226
- https://pypi.org/project/changedetection-io
- https://github.com/advisories/GHSA-pwgc-w4x9-gw67
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- Python (PyPI)
- Package
changedetection-io- Disclosed
- 03.05.2024
- Updated
- 11.10.2026 15:17
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-1243 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-pwgc-w4x9-gw67 - CC BY 4.0
Vulnerability history: changedetection-io
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 20
- First → latest
- 02.2023 05.2026
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- Critical 2
- High 9
- Medium 6
- Low 2
- Unrated 1
Disclosures per year
- 2023: 1
- 2024: 6
- 2025: 2
- 2026: 11
-
changedetection.io Cross-site Scripting vulnerability this entry
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