phpList prior to 3.6.3 is vulnerable to Cross-Site Scripting (XSS) due to improper input sanitization in lt.php. The vulnerability is exploitable when the application dynamically references internal paths and processes untrusted input without escaping, allowing an attacker to inject malicious JavaScript.
CVE ID: CVE-2025-28074
CVSS Base Severity: MEDIUM
CVSS Base Score: 6.1
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Vendor: n/a
Product: n/a
EPSS Score: 0.03% (probability of being exploited)
EPSS Percentile: 7.41% (scored less or equal to compared to others)
EPSS Date: 2025-06-06 (when was this score calculated)