5.3

CVE-2025-5802

Username Enumeration via Self Registration Flow in Multiple WSO2 Products Allows User Account Discovery

The 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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerWSO2
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Produkt WSO2 API Manager
Default Statusunaffected
Version 0
Version < 3.1.0
Status unknown
Version 3.1.0
Version < 3.1.0.354
Status affected
Version 3.2.0
Version < 3.2.0.458
Status affected
Version 3.2.0
Version < 3.2.0.478
Status affected
Version 3.2.1
Version < 3.2.1.96
Status affected
Version 4.0.0
Version < 4.0.0.379
Status affected
Version 4.1.0
Version < 4.1.0.262
Status affected
Version 4.2.0
Version < 4.2.0.200
Status affected
Version 4.3.0
Version < 4.3.0.112
Status affected
Version 4.4.0
Version < 4.4.0.72
Status affected
Version 4.5.0
Version < 4.5.0.55
Status affected
Version 4.6.0
Version < 4.6.0.17
Status affected
HerstellerWSO2
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Produkt WSO2 API Control Plane
Default Statusunaffected
Version 0
Version < 4.5.0
Status unknown
Version 4.5.0
Version < 4.5.0.56
Status affected
Version 4.6.0
Version < 4.6.0.18
Status affected
HerstellerWSO2
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Produkt WSO2 Universal Gateway
Default Statusunaffected
Version 0
Version < 4.5.0
Status unknown
Version 4.5.0
Version < 4.5.0.55
Status affected
Version 4.6.0
Version < 4.6.0.17
Status affected
HerstellerWSO2
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Produkt WSO2 Traffic Manager
Default Statusunaffected
Version 0
Version < 4.5.0
Status unknown
Version 4.5.0
Version < 4.5.0.54
Status affected
Version 4.6.0
Version < 4.6.0.17
Status affected
HerstellerWSO2
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Produkt WSO2 Identity Server
Default Statusunaffected
Version 0
Version < 5.10.0
Status unknown
Version 5.10.0
Version < 5.10.0.383
Status affected
Version 5.11.0
Version < 5.11.0.430
Status affected
Version 6.0.0
Version < 6.0.0.257
Status affected
Version 6.1.0
Version < 6.1.0.234
Status affected
Version 6.1.0
Version < 6.1.0.257
Status affected
Version 7.0.0
Version < 7.0.0.133
Status affected
Version 7.1.0
Version < 7.1.0.41
Status affected
Version 7.2.0
Version < 7.2.0.3
Status affected
HerstellerWSO2
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Produkt WSO2 Identity Server as Key Manager
Default Statusunaffected
Version 0
Version < 5.10.0
Status unknown
Version 5.10.0
Version < 5.10.0.374
Status affected
HerstellerWSO2
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Produkt WSO2 Open Banking AM
Default Statusunaffected
Version 0
Version < 2.0.0
Status unknown
Version 2.0.0
Version < 2.0.0.403
Status affected
HerstellerWSO2
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Produkt WSO2 Open Banking IAM
Default Statusunaffected
Version 0
Version < 2.0.0
Status unknown
Version 2.0.0
Version < 2.0.0.423
Status affected
HerstellerWSO2
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Produkt WSO2 Carbon Identity Management Endpoint Util
Default Statusunknown
Version 5.17.5
Version < 5.17.5.332
Status affected
Version 5.18.187
Version < 5.18.187.330
Status affected
Version 5.23.8
Version < 5.23.8.213
Status affected
Version 5.25.92
Version < 5.25.92.167
Status affected
Version 7.0.78
Version < 7.0.78.162
Status affected
Version <= *
Version x
Status unaffected
HerstellerWSO2
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Produkt WSO2 Carbon Identity Application Authentication Framework
Default Statusunknown
Version 5.17.5
Version < 5.17.5.332
Status affected
Version 5.18.187
Version < 5.18.187.330
Status affected
Version <= *
Version x
Status unaffected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.25% 0.167
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
ed10eef1-636d-4fbe-9993-6890dfa878f8 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE-203 Observable Discrepancy

The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor.

https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4227/