jte's HTML templates containing Javascript template strings are subject to XSS
Published Jan 13, 2025 · Updated Nov 3, 2026
Original summary
Normalized public record · Updated Nov 3, 2026
jte's HTML templates containing Javascript template strings are subject to XSS
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
Jte HTML templates with script tags or script attributes that include a Javascript template string (backticks) are subject to XSS.
Potential impact
HTML templates rendered by Jte's OwaspHtmlTemplateOutput in versions less than or equal to 3.1.15 with script tags or script attributes that contain Javascript template strings (backticks) are vulnerable.
Technical context
The javaScriptBlock and javaScriptAttribute methods in the Escape class (source) do not escape backticks, which are used for Javascript template strings. Dollar signs in template strings should also be escaped as well to prevent undesired interpolation.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- LOW
- Confidence
- Not available
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- Security advisory ↗
- https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals#description ↗
- Source repository ↗
Record history
Published Jan 13, 2025 · Last refreshed Nov 3, 2026