Reflected XSS when using flashMessages or languageDictionary
Published Jun 4, 2021 · Updated Nov 3, 2026
Original summary
Normalized public record · Updated Nov 3, 2026
Reflected XSS when using flashMessages or languageDictionary
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
Versions before and including `11.30.0` are vulnerable to reflected XSS. An attacker can execute arbitrary code when the library's - `flashMessage` feature is utilized and user input or data from URL parameters is incorporated into the `flashMessage`. - `languageDictionary` feature is utilized and user input or data from URL parameters is incorporated into the `languageDictionary`.
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
- MEDIUM
- 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
Record history
Published Jun 4, 2021 · Last refreshed Nov 3, 2026