SB20250716115 - Multiple vulnerabilities in DotNetNuke



SB20250716115 - Multiple vulnerabilities in DotNetNuke

Published: July 16, 2025

Security Bulletin ID SB20250716115
Severity
High
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

High 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 secuirty vulnerabilities.


1) Stored cross-site scripting (CVE-ID: CVE-2025-52485)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in Activity Feed. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.


2) Information disclosure (CVE-ID: CVE-2025-52488)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application. A remote attacker can use specially crafted series of malicious interaction and expose NTLM hashes to a third party SMB server.


3) Improper Check for Unusual or Exceptional Conditions (CVE-ID: CVE-2025-52487)

The vulnerability allows a remote attacker to bypass the design of DNN Login IP Filters.

The vulnerability exists due to improper error handling. A remote attacker can send specially crafted data to the application and allow login attempts from IP Adresses not in the allow list.


4) Cross-site scripting (CVE-ID: CVE-2025-52486)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in some TokenReplace situations with SkinObjects. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.


Remediation

Install update from vendor's website.