CVE-2025-65203
7.1 · HIGHOverview
CVE-2025-65203 is a high-severity vulnerability affecting keepassxc keepassxc-browser. It was published on December 17, 2025 and has a CVSS 3.1 base score of 7.1 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
KeePassXC-Browser thru 1.9.9.2 autofills or prompts to fill stored credentials into documents rendered under a browser-enforced CSP directive and iframe attribute sandbox, allowing attacker-controlled script in the sandboxed document to access populated form fields and exfiltrate credentials.
Remediation
Check the references section for vendor advisories and patches from keepassxc. Update keepassxc-browser 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 |
|---|---|---|---|
| keepassxc | keepassxc-browser | 0 | Affected |
Frequently Asked Questions
What is CVE-2025-65203?
CVE-2025-65203 is a high-severity vulnerability affecting keepassxc keepassxc-browser. It was published on December 17, 2025 and has a CVSS 3.1 base score of 7.1 (HIGH).
How severe is CVE-2025-65203?
This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2025-65203?
Check the references section for vendor advisories and patches from keepassxc. Update keepassxc-browser 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-2025-65203?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-65203 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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Browser-based exploitation validates findings with real proof-of-concept.
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