CSRF in Keepassxc Keepassxc-Browser
CVE-2025-65203
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.
Vulnerability class: CSRF (Cross-Site Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.001 (2.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 2.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/keepassxreboot/keepassxc-browser/issues/2647 (Third Party Advisory, Issue Tracking)
- github.com/keepassxreboot/keepassxc-browser/pull/2648 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-65203?
- CVE-2025-65203 is a high-severity vulnerability in Keepassxc Keepassxc-Browser, classified under Cross-Site Request Forgery (CSRF). CVSS score: 7.1/10. Published 2025-12-17.
- How severe is CVE-2025-65203?
- High severity. CVSS v3 base score is 7.1 out of 10.