Description

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. A url could be crafted to the DNN ImageHandler to render text from a querystring parameter. This text would display in the resulting image and a user that trusts the domain might think that the information is legitimate. This vulnerability is fixed in 9.13.4.

Classification

CVE ID: CVE-2025-32371

CVSS Base Severity: MEDIUM

CVSS Base Score: 4.3

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Affected Products

Vendor: dnnsoftware

Product: Dnn.Platform

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.03% (probability of being exploited)

EPSS Percentile: 5.86% (scored less or equal to compared to others)

EPSS Date: 2025-04-18 (when was this score calculated)

Stakeholder-Specific Vulnerability Categorization (SSVC)

SSVC Exploitation: none

SSVC Technical Impact: partial

SSVC Automatable: false

References

https://nvd.nist.gov/vuln/detail/CVE-2025-32371
https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-2rrc-g594-rhqw
https://github.com/dnnsoftware/Dnn.Platform/commit/5def7cc2e7931bb1041b21540bde99f96874a5a9

Timeline