XSS in Dani-Garcia Vaultwarden

CVE-2024-39926

An issue was discovered in Vaultwarden (formerly Bitwarden_RS) 1.30.3. A stored cross-site scripting (XSS) or, due to the default CSP, HTML injection vulnerability has been discovered in the admin dashboard. This potentially allows an authenticated attacker to inject malicious code into the dashboard, which is then executed or rendered in the context of an administrator's browser when viewing the injected content. However, it is important to note that the default Content Security Policy (CSP) of the application blocks most exploitation paths, significantly mitigating the potential impact.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (35.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-39926?
CVE-2024-39926 is a medium-severity vulnerability in Dani-Garcia Vaultwarden, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2024-09-13.
How severe is CVE-2024-39926?
Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2024-39926 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.