CVE-2024-34061 is a medium-severity (CVSS 4.3) Cross-site Scripting (XSS) vulnerability in changedetection-io. A fix is available for changedetection-io — see the affected versions and patch details below.
Reflected cross site scripting in changedetection.io
Exploitation Status
Proof-of-concept exploit code exists
- CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
Exploitation and automatability from CISA’s SSVC triage for CVE-2024-34061.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
CVE-2024-34061 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 378,567 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
changedetection-ioReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.
Description
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 Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | changedetection-io | all versions | 0.45.22pip install --upgrade 'changedetection-io==0.45.22' |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for changedetection-io, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update changedetection-io to 0.45.22 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-34061 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2024-34061 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2024-34061. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
How to detect CVE-2024-34061
A community-maintained Nuclei template exists for this CVE. You can scan for it directly:
nuclei -id cve-2024-34061 -u https://target- Template
- Changedetection.io <=v0.45.21 - Cross-Site Scripting
- Severity
- medium
- Impact
- Attackers can inject malicious scripts via the notification_urls parameter, potentially compromising user sessions.
- Remediation
- Update Changedetection.io to version 0.45.22 or later.
Template by ProjectDiscovery nuclei-templates (ritikchaddha), MIT licensed. View the full template. Scan only systems you are authorised to test.
Frequently Asked Questions
Is CVE-2024-34061 in your dependencies?
O3 Security finds CVE-2024-34061 across PyPI dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.