RCE in Bitwarden
CVE-2025-5138
A vulnerability was found in Bitwarden up to 2.25.1. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the component PDF File Handler. The manipulation leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (34.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 34.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Bitwarden — versions 2.25.0, 2.25.1
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, vdb-entry)
- vuldb.com/ (signature, permissions-required)
- vuldb.com/ (third-party-advisory)
- github.com/YZS17/CVE/blob/main/PDF XSS vulnerability in file upload function of… (exploit)
Frequently asked questions
- What is CVE-2025-5138?
- CVE-2025-5138 is a low-severity vulnerability in Bitwarden, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2025-05-25.
- How severe is CVE-2025-5138?
- Low severity. CVSS v3 base score is 3.5 out of 10.