cvedb.io
CVE-2026-66296
UNKNOWN · CVSS n/a
EPSS exploitation probability: 0%
Published 2026-08-03T20:17:25.720 · Last modified 2026-08-03T20:17:25.720

Summary

Improper Neutralization of Input During Web Page Generation (XSS) vulnerability in lud oaskit allows reflected cross-site scripting via the default HTML error handler. Oaskit.ErrorHandler.Default.format_reason/4 and Oaskit.ErrorHandler.Default.reason_to_html/1 in lib/oaskit/error_handler/default.ex render request-validation failures as an HTML page whenever the request's Accept header contains html, interpolating request-controlled strings into that page without HTML escaping. The unescaped values are object keys taken from a request body or from an object or deepObject query parameter, which appear in the JSON Schema error's instance path when a schema rejects them (for example under additionalProperties: false), and the raw Content-Type header, reflected in unsupported-media-type errors

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.