CVE-2026-3962 Details
Description
A vulnerability was identified in Jcharis Machine-Learning-Web-Apps up to a6996b634d98ccec4701ac8934016e8175b60eb5. The impacted element is the function render_template of the file Machine-Learning-Web-Apps-master/Build-n-Deploy-Flask-App-with-Waypoint/app/app.py of the component Jinja2 Template Handler. Such manipulation leads to cross site scripting. It is possible to launch the attack remotely. The exploit is publicly available and might be used. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The project was informed of the problem early through an issue report but has not responded yet.
A reflected cross-site scripting vulnerability has been identified in Jcharis Machine-Learning-Web-Apps versions prior to a6996b634d98ccec4701ac8934016e8175b60eb5. The issue arises in the Jinja2 template rendering process, specifically within the 'render_template' function of 'app/app.py'. User input from the 'newtext' field is passed directly to the template without proper escaping, allowing the injection of arbitrary HTML or JavaScript. This vulnerability can be exploited remotely, and a public proof-of-concept is available.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Mar 11, 2026CISA-ADP
Assessed Mar 12, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/Jcharis/Machine-Learning-Web-Apps/ | [email protected] | Vendor |
| https://github.com/Jcharis/Machine-Learning-Web-Apps/issues/15 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://github.com/Jcharis/Machine-Learning-Web-Apps/issues/15#issue-3995372171 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://vuldb.com/?ctiid.350391 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/?id.350391 | [email protected] | AdvisoryExploitPartial Content |
| https://vuldb.com/?submit.768226 | [email protected] | ExploitTechnical Description |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
| CWE-94 | Improper Control of Generation of Code ('Code Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Jcharis Machine-Learning-Web-Apps | All versions |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 29, 2026 | Data Remediation | [email protected] |
| Mar 11, 2026 | New CVE Received | [email protected] |