DNN allows loading unused themes on anonymous clients through query parameters
Summary
Arbitrary themes can be loaded through query parameters. If an installed theme had a vulnerability, even if it was not used on any page, this could be loaded on unsuspecting clients without knowledge of the site owner.
Details
Many people who run DNN sites have a number of installed themes that they do not actually use. This could be because they were testing many themes during initial setup, because they have changed themes over time, or because they have development and production versions of a theme. Whatever the reason, many times the unused themes will become outdated over time as site admins wouldn't have reason to update something that is not used. However, this could introduce an entry point to exploit a vulnerable theme by making the server run the unused theme for unsuspecting client requests. Depending on the vulnerability in a theme, this could lead to server side or client side arbitrary code execution. With DNN 10.1.0 this functionality is now disabled by default but a setting was introduced in the Security module to turn activate the functionality.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| .NET (NuGet) | DotNetNuke.Core | < 10.1.0 | 10.1.0 |
Referencias
- https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-wq2j-w9pm-7x2p
- https://nvd.nist.gov/vuln/detail/CVE-2025-59535
- https://github.com/dnnsoftware/Dnn.Platform/commit/72f30f69fd2214d77f6c2577dfcca495a24caf5c
- https://dnncommunity.org/?SkinSrc=%5BG%5Dskins%2Fxcillion%2Fhome&ContainerSrc=%5BG%5DContainers%2FXcillion%2FNoTitle
- https://github.com/dnnsoftware/Dnn.Platform
- https://github.com/dnnsoftware/Dnn.Platform/blob/develop/DNN%20Platform/Library/UI/Skins/Skin.cs#L305
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L- Debilidad (CWE)
CWE-20, CWE-829- Plataforma
- .NET (NuGet)
- Paquete
DotNetNuke.Core- Publicada
- 22.09.2025
- Actualizado
- 11.10.2026 11:23
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-wq2j-w9pm-7x2p - CC BY 4.0
Historial de vulnerabilidades: DotNetNuke.Core
Todas las vulnerabilidades publicadas de este paquete (.NET (NuGet)), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 36
- Primera → última
- 10.2018 04.2026
- Sin corrección
- 3
- Explotada en ataques
- 3
Distribución por gravedad
- Crítica 3
- Alta 10
- Media 21
- Baja 2
Divulgaciones por año
- 2018: 5
- 2019: 5
- 2020: 0
- 2021: 0
- 2022: 9
- 2023: 0
- 2024: 0
- 2025: 9
- 2026: 8
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DNN allows loading unused themes on anonymous clients through query parameters esta entrada
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