CVE-2025-65203CWE-352CWE-353CWE-640csrf

CVE-2025-65203

High · published December 17, 2025

CVSS v3.1
7.1
EPSS
0%
Percentile
2.8
In the wild
Unconfirmed
What it is

⚡ A sneaky little trick lets attacker-controlled scripts swipe your stored credentials through your browser! Think of it like a waiter who knows your order but works at a restaurant with a hidden menu. You think you're just placing an order, but the waiter can intercept your requests and send them to a competitor instead — that's the danger here! An attacker could quietly harvest your credentials as you autofill them, leaving you vulnerable to account takeovers or exposing sensitive data. It's like hand-delivering your secrets to a thief without even realizing it!

Put simply

Think of it like a waiter who knows your order but works at a restaurant with a hidden menu. You think you're just placing an order, but the waiter can intercept your requests and send them to a competitor instead — that's the danger here! This vulnerability in KeePassXC-Browser (up to version 1.9.9.2) allows scripts in sandboxed iframes to access autofilled form fields, compromising user credentials through malicious sites adhering to Content Security Policies.

What to do

An attacker could quietly harvest your credentials as you autofill them, leaving you vulnerable to account takeovers or exposing sensitive data. It's like hand-delivering your secrets to a thief without even realizing it! Update KeePassXC-Browser to the latest version immediately to close this vulnerability. Additionally, consider reviewing your browser security settings to limit scripts running in sandboxed documents until a patch is confirmed. You've got this! Stay vigilant and keep your data safe! 🛡️

The record
Technical detail
CVSS v3.1
7.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00137 · 2.8th percentile
Weaknesses
CWE-352 · Cross-Site Request Forgery (CSRF); CWE-353 · Missing Support for Integrity Check; CWE-640 · Weak Password Recovery Mechanism for Forgotten Password
Published
2025-12-17T23:15Z
Affected products (1)
ProductVersionsFixed in
keepassxc/keepassxc-browser≤ 1.9.9.2—
References (2)
EPSS history
Timeline
  • 17 DEC 00:00Z
    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…
    cvelistv5