XSS in Dnnsoftware Dnn.platform

CVE-2025-48377

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 9.13.9, a specially crafted URL may be constructed which can inject an XSS payload that is triggered by using some module actions. Version 9.13.9 fixes the issue.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (12.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 12.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-48377: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-48377?
CVE-2025-48377 is a medium-severity vulnerability in Dnnsoftware Dnn.platform, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-05-23.
How severe is CVE-2025-48377?
Medium severity. CVSS v3 base score is 5.4 out of 10.