CVE-2025-3840
An improper neutralization of input vulnerability was identified in the End of Life (EOL) OVA based connect installer component which is deployed for installation purposes in a customer network.
Overview
CVE-2025-3840 is a known-severity vulnerability. It was published on April 21, 2025.
Technical description
An improper neutralization of input vulnerability was identified in the End of Life (EOL) OVA based connect installer component which is deployed for installation purposes in a customer network. This EOL component was deprecated in September 2023 with end of support extended till January 2024. An actor can manipulate the action parameter of the login form to inject malicious scripts which would lead to a XSS attack under certain conditions.
Remediation
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
References
How CyberStrike helps
Reason, not just scan
It reasons through your app's logic the way a human pentester would, so it finds flaws signature scanners miss.
Learn moreVerified findings
Every finding is proven exploitable before you see it, which cuts the false positives that bury real risk.
Learn moreAI-driven DAST and SAST
Probe running apps and read source from one engine, so issues are caught before and after they ship.
Learn moreOpen source
Read exactly how it tests and what it reports. CyberStrike is open source and in early access.
View the repo
Frequently asked questions
What is CVE-2025-3840?
CVE-2025-3840 is a known-severity vulnerability. It was published on April 21, 2025.
How severe is CVE-2025-3840?
CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.
How do I fix or remediate CVE-2025-3840?
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2025-3840?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-3840 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.