CVE-2019-18839
9.0 · CRITICALOverview
CVE-2019-18839 is a critical-severity vulnerability affecting fudforum fudforum. It was published on November 13, 2019 and has a CVSS 3.1 base score of 9.0 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.0, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
FUDForum 3.0.9 is vulnerable to Stored XSS via the nlogin parameter. This may result in remote code execution. An attacker can use a user account to fully compromise the system using a POST request. When the admin visits the user information, the payload will execute. This will allow for PHP files to be written to the web root, and for code to execute on the remote server.
Remediation
Check the references section for vendor advisories and patches from fudforum. Update fudforum to the latest patched version. 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.
Affected Products
| Vendor | Product | Versions | Status |
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Frequently Asked Questions
What is CVE-2019-18839?
CVE-2019-18839 is a critical-severity vulnerability affecting fudforum fudforum. It was published on November 13, 2019 and has a CVSS 3.1 base score of 9.0 (CRITICAL).
How severe is CVE-2019-18839?
This vulnerability has a CVSS 3.1 base score of 9.0, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2019-18839?
Check the references section for vendor advisories and patches from fudforum. Update fudforum to the latest patched version. 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-2019-18839?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-18839 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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