CVE-2025-1987CWE-79

Stored XSS in Psono-Client via Malicious Vault Entry URLs

Critical · published June 21, 2025

CVSS v4.0
9.3
EPSS
1%
Percentile
46.4
In the wild
Unconfirmed
What it is

A Cross-Site Scripting (XSS) vulnerability has been identified in Psono-Client’s handling of vault entries of type website_password and bookmark, as used in Bitdefender SecurePass. The client does not properly sanitize the URL field in these entries. As a result, an attacker can craft a malicious vault entry (or trick a user into creating or importing one) with a javascript:URL. When the user interacts with this entry (for example, by clicking or opening it), the application will execute the malicious JavaScript in the context of the Psono vault. This allows an attacker to run arbitrary code in the victim’s browser, potentially giving them access to the user’s password vault and sensitive data.

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
EPSS
0.00569 · 46.4th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2025-06-21T21:35Z
EPSS history
Timeline
  • 21 JUN 21:35Z
    Stored XSS in Psono-Client via Malicious Vault Entry URLs
    cvelistv5