CVE-2021-25935

Public Exploit

Description

In OpenNMS Horizon, versions opennms-17.0.0-1 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-2020.1.7-1 are vulnerable to Stored Cross-Site Scripting, since the function `add()` performs improper validation checks on the input sent to the `foreign-source` parameter. Due to this flaw an attacker could bypass the existing regex validation and inject an arbitrary script which will be stored in the database.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.26%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory whitesourcesoftware.com
Affected: n/a OpenNMS
Published at:
Updated at:

References

Link Tags
https://github.com/OpenNMS/opennms/commit/eb08b5ed4c5548f3e941a1f0d0363ae4439fa98c third party advisory patch
https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25935 third party advisory exploit
https://github.com/OpenNMS/opennms/commit/101e3aa06ec9a1f8f266335fc6f5685c062c6117 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-25935?
CVE-2021-25935 has been scored as a medium severity vulnerability.
How to fix CVE-2021-25935?
To fix CVE-2021-25935, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-25935 being actively exploited in the wild?
It is possible that CVE-2021-25935 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-25935?
CVE-2021-25935 affects n/a OpenNMS.
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