CVE-2025-59821 — Vulnerability in DotNetNuke.Core — CVE Details

MEDIUM

DNN vulnerable to Reflected Cross-Site Scripting (XSS) using url to profile

Published September 23, 2025Updated September 23, 2025Source: osv

Summary

# Summary A reflected cross-site scripting (XSS) vulnerability exists under certain conditions, using a specially crafter url to view a user profile # Description DNN’s URL/path handling and template rendering can allow specially crafted input to be reflected into a user profile that are returned to the browser. In these cases, the application does not sufficiently neutralize or encode characters that are meaningful in HTML, so an attacker can cause a victim’s browser to interpret attacker-controlled content as part of the page’s HTML.

Advisory Timeline

First published September 23, 2025 (384 days ago).
Last revised September 23, 2025 — 0 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

NuGet

Update DotNetNuke.Core to 10.1.0 or later

dotnet add package DotNetNuke.Core --version 10.1.0

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: nuget (1).

Package	Ecosystem	Affected	Fixed In
DotNetNuke.Core	nuget	10.0.0, 10.0.1, 6.0.0, 7.0.0 (+57 more)	10.1.0

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CWE-79
Cross-site Scripting (XSS)MITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 6.5 score means for each attack dimension.

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

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

References

Frequently Asked Questions

What is CVE-2025-59821?: DNN vulnerable to Reflected Cross-Site Scripting (XSS) using url to profile This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 6.5/10).
How do I check if my project is affected by CVE-2025-59821?: CVE-2025-59821 affects DotNetNuke.Core. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2025-59821 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

6.5

Exploitation requires specific conditions or has limited impact. Remediate within weeks.

Also Known As

GHSA-jc4g-c8ww-5738

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