Auth bypass in Keepassxc

CVE-2023-35866

In KeePassXC through 2.7.5, a local attacker can make changes to the Database security settings, including master password and second-factor authentication, within an authenticated KeePassXC Database session, without the need to authenticate these changes by entering the password and/or second-factor authentication to confirm changes. NOTE: the vendor's position is "asking the user for their password prior to making any changes to the database settings adds no additional protection against a local attacker."

Vulnerability class: Broken Access Control

EPSS: 0.002 (15.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-35866?
CVE-2023-35866 is a medium-severity vulnerability in Keepassxc, classified under Incorrect Authorization. CVSS score: 5.5/10. Published 2023-06-19.
How severe is CVE-2023-35866?
Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2023-35866 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.