Stored cross-site scripting in DotNetNuke

1) Stored cross-site scripting

EUVDB-ID: #VU21393

Risk: Low

CVSSv4.0: 2 [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]

CVE-ID: CVE-2019-12562

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

Exploit availability: Yes

Description

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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

DotNetNuke: 8.0.0 - 9.3.2

CPE2.3

• cpe:2.3:a:dnn:dotnetnuke:8.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:dnn:dotnetnuke:8.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:dnn:dotnetnuke:8.0.2:*:*:*:*:*:*:*

External links

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

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.