DNN Vulnerable to Stored Cross-Site Scripting (XSS) in the Prompt module

published 2025-09-23 13 mo ago modified 2026-10-11 28 d ago also EUVD-2025-30896 , GHSA-2qxc-mf4x-wr29

cvss: 9.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 44%
public exploits: 0; none known

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 10.1.0, the Prompt module allows execution of commands that can return raw HTML. Malicious input, even if sanitized for display elsewhere, can be executed when processed through certain commands, leading to potential script execution (XSS). This issue has been patched in version 10.1.0.

Patch / fix

fixed in 2

nuget DotNetNuke.Core 10.1.0
dnnsoftware dotnetnuke 10.1.0

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 13 mo ago (2025-09-23)

Exploit prediction

0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
GitHub	3.1	9.0	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
nuget	DotNetNuke.Core	<10.1.0	10.1.0

Affected products

dnnsoftware Dnn.Platform

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /dnnsoftware/Dnn.Platform/security/advisories/GHSA-2qxc-mf4x-wr29
web, vendor-advisory
nvd.nist.gov /vuln/detail/CVE-2025-59545
advisory
github.com /dnnsoftware/Dnn.Platform
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary