Medium severity4.6GHSA Advisory· Published Jun 10, 2026· Updated Jun 12, 2026
CVE-2026-46609
CVE-2026-46609
Description
Umbraco is an ASP.NET CMS. From version 14.0.0 to before version 17.4.0, authenticated users are able to inject HTML into an input field, which is rendered in the confirmation dialog without proper output encoding. This issue has been patched in version 17.4.0.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
Umbraco.CmsNuGet | >= 14.0.0, < 17.4.0 | 17.4.0 |
Affected products
1- Range: >= 14.0.0, <= 17.3.5
Patches
Vulnerability mechanics
References
3- github.com/advisories/GHSA-vr9v-27gg-qgx4ghsaADVISORY
- github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-vr9v-27gg-qgx4nvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-46609ghsaADVISORY
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