23 Oct 2026 15:48:27 UTC
Username Enumeration via Self Registration Flow in Multiple WSO2 Products Allows User Account Discovery
cve-program · CVE-2025-5802 · Published
CVE-2025-5802
Username Enumeration via Self Registration Flow in Multiple WSO2 Products Allows User Account Discovery
CVSS 3.1 5.3 MEDIUMCheck source for fixed versionsKEV status unknown
cve-program · CVE-2025-5802
PublishedThe self-registration flow accepts user-supplied input for usernames without adequately preventing the disclosure of username existence. When a user attempts to register with an existing username, the system responds with an error message that explicitly indicates the username is already in use. This behavior allows an attacker to discover valid usernames within the system. The discovery of valid usernames can facilitate subsequent attacks such as brute force, social engineering, and targeted phishing campaigns.
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