CVE-2025-48376: Dnn.Platform's Site Import could use an external source with a crafted request

Severity: low (CVSS 2.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-05-23 · updated 2026-06-17
Weakness: CWE-841

Description

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 9.13.9, a malicious SuperUser (Host) could craft a request to use an external url for a site export to then be imported. Version 9.13.9 fixes the issue.

Affected products

DotNetNuke CMS Fixed in 9.1.1: before 9.13.9 — fixed in 9.13.9

How to fix

Upgrade to a fixed version: DotNetNuke CMS Fixed in 9.1.1 9.13.9. Check the vendor advisory for mitigations.

References

https://github.com/dnnsoftware/Dnn.Platform/commit/13fb13ee76173c3467d7ee8d120b20ca7bd4fa63
https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-62mf-vhhw-xmf8

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