SB20250716115 - Multiple vulnerabilities in DotNetNuke
Published: July 16, 2025
Breakdown by Severity
- 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.
References
- https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-wwc9-wmm3-2pmf
- https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-mgfv-2362-jq96
- https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-fjhg-3mrh-mm7h
- https://github.com/dnnsoftware/Dnn.Platform/commit/74f6de68da1572c1d7e9c6e30e9f77f7c5596b1b
- https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-pf4h-vrv6-cmvr