CVE-2025-65203

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.

CVSS v3.1 Score

7.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N

Weakness Type (CWE)

CWE-352 Cross-Site Request Forgery

CWE-353 CWE-353

CWE-640 CWE-640

Affected Products

Vendor	Product	Versions
keepassxc	keepassxc-browser	< 1.9.9.2

References

Advisories & Patches

https://github.com/keepassxreboot/keepassxc-browser/pull/2648

Other References

https://github.com/keepassxreboot/keepassxc-browser/issues/2647

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 7.1 (HIGH).

How severe is CVE-2025-65203? +

CVE-2025-65203 has a CVSS v3.1 score of 7.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-65203? +

CVE-2025-65203 affects products from keepassxc, specifically: keepassxc-browser. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-65203? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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