### Impact Authenticated users are able to inject HTML vulnerability into an input field, which is rendered in the confirmation dialog without proper output encoding. ### Patches This issue has been patched in 17.4.0
Update Umbraco.Cms to 17.4.0 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanUmbraco.Cms: XSS/HTML Injection in Umbraco Backoffice confirmation dialog affects Umbraco.Cms (nuget). Severity is medium. ### Impact Authenticated users are able to inject HTML vulnerability into an input field, which is rendered in the confirmation dialog without proper output encoding. ### Patches This issue has been patched in 17.4.0
AI coding agents often install or upgrade packages automatically in nuget. A medium vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|---|---|
| Umbraco.Cmsnuget | >=14.0.0,<=17.3.5 | 17.4.0 |
Fixed versions are reported by the source feed; confirm compatibility before updating.
### Impact Authenticated users are able to inject HTML vulnerability into an input field, which is rendered in the confirmation dialog without proper output encoding. ### Patches This issue has been patched in 17.4.0
Update Umbraco.Cms to 17.4.0 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanUmbraco.Cms: XSS/HTML Injection in Umbraco Backoffice confirmation dialog affects Umbraco.Cms (nuget). Severity is medium. ### Impact Authenticated users are able to inject HTML vulnerability into an input field, which is rendered in the confirmation dialog without proper output encoding. ### Patches This issue has been patched in 17.4.0
AI coding agents often install or upgrade packages automatically in nuget. A medium vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|---|---|
| Umbraco.Cmsnuget | >=14.0.0,<=17.3.5 | 17.4.0 |
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by GitHub Security Advisories (ghsa).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL GuardReported by GitHub Security Advisories (ghsa).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard