SB2019093001 - Stored cross-site scripting in DotNetNuke

Description

This security bulletin contains information about 1 vulnerability.

1) Stored cross-site scripting (CVE-ID: CVE-2019-12562)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/U:Clear

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

The vulnerability exists due to insufficient sanitization of user-supplied data when processing data passed via the "Display Name" field in the admin notification function. A remote authenticated attacker 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.

Remediation

Install update from vendor's website.

References

• https://mayaseven.com/cve-2019-12562-stored-cross-site-scripting-in-dotnetnuke-dnn-version-v9-3-2/
• https://www.exploit-db.com/exploits/47448