CVE-2021-25932 Cross-site scripting in OpenNMS
Attackers can inject malicious scripts via the userID parameter in OpenNMS, potentially leading to session hijacking or code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-25932?
CVE-2021-25932 is a medium-severity cross-site scripting vulnerability in OpenNMS, published on 1 Jun 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
In OpenNMS Horizon, versions opennms-1-0-stable through opennms-27.1.0-1; OpenNMS Meridian, versions meridian-foundation-2015.1.0-1 through meridian-foundation-2019.1.18-1; meridian-foundation-2020.1.0-1 through meridian-foundation-2020.1.6-1 are vulnerable to Stored Cross-Site Scripting, since the function `validateFormInput()` performs improper validation checks on the input sent to the `userID` parameter. Due to this flaw an attacker could inject an arbitrary script which will be stored in the database.
Weakness: CWE-79
Which versions are affected by CVE-2021-25932?
It affects 2 products.
Products include Opennms Meridian, Opennms Opennms.
How do I fix CVE-2021-25932?
No fix has been published for CVE-2021-25932 yet. Limit exposure of the affected software until one is available.
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-2021-25932 being exploited?
There is no known exploitation of CVE-2021-25932 in the wild and no public exploit code.
Sources
Also known as GHSA-78gg-3865-6f24.