CVE-2019-12562 Stored Cross-Site Scripting vulnerability in admin component of DotNetNuke
Stored XSS in DotNetNuke allows attackers to execute scripts in admin sessions, leading to privilege escalation and potential server compromise.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2019-12562?
CVE-2019-12562 is a medium-severity cross-site scripting vulnerability in Dnnsoftware Dotnetnuke, published on 26 Sep 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Stored Cross-Site Scripting in DotNetNuke (DNN) Version before 9.4.0 allows remote attackers to store and embed the malicious script into the admin notification page. The exploit could be used to perfom any action with admin privileges such as managing content, adding users, uploading backdoors to the server, etc. Successful exploitation occurs when an admin user visits a notification page with stored cross-site scripting.
Weakness: CWE-79
Which versions are affected by CVE-2019-12562?
2 open source packages ship an affected version, including DotNetNuke.Core. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
DotNetNuke.Core NuGet | All versions | 9.4.0 |
DotNetNuke.Core NuGet | All versions | 9.4.0 |
Products include Dnnsoftware Dotnetnuke.
How do I fix CVE-2019-12562?
Upgrade DotNetNuke.Core to 9.4.0 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2019-12562 being exploited?
There is no known exploitation of CVE-2019-12562 in the wild and no public exploit code.
Public exploit code: 1 Exploit-DB entry and 1 proofs of concept on GitHub.
Other vulnerabilities in Dnnsoftware Dotnetnuke
- CVE-2017-9822 DotNetNuke (DNN) Remote Code Execution
- CVE-2018-15811 DotNetNuke (DNN) Inadequate Encryption Strength
- CVE-2018-18325 DotNetNuke (DNN) Inadequate Encryption Strength
- CVE-2025-64095 DNN Insufficient Access Control - Image Upload allows for Site Content Overwrite
- CVE-2006-3601 Privilege escalation in n/a
Sources
Also known as GHSA-5whq-j5qg-wjvp.