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TI-2025-05232 Aliases CVE-2025-5802GHSA-6cgx-wc6q-rrj4

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

Priority LOW 30CWE-203Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-203.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0033 26th percentileScored 2026-11-07
Fix Fixed WSO2 API Manager (WSO2): 3.1.0.354, 3.2.0.458, 3.2.0.478 +8WSO2 API Control Plane (WSO2): 4.5.0.56, 4.6.0.18+8 more products

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
WSO2WSO2 API Manager3.1.0 to before 3.1.0.354; 3.2.0 to before 3.2.0.458; 3.2.0 to before 3.2.0.478; 3.2.1 to before 3.2.1.96; 4.0.0 to before 4.0.0.379; 4.1.0 to before 4.1.0.262; 4.2.0 to before 4.2.0.200; 4.3.0 to before 4.3.0.112; 4.4.0 to before 4.4.0.72; 4.5.0 to before 4.5.0.55; 4.6.0 to before 4.6.0.173.1.0.354, 3.2.0.458, 3.2.0.478, 3.2.1.96, 4.0.0.379, 4.1.0.262, 4.2.0.200, 4.3.0.112, 4.4.0.72, 4.5.0.55, 4.6.0.17Patch availableCNA
WSO2WSO2 API Control Plane4.5.0 to before 4.5.0.56; 4.6.0 to before 4.6.0.184.5.0.56, 4.6.0.18Patch availableCNA
WSO2WSO2 Universal Gateway4.5.0 to before 4.5.0.55; 4.6.0 to before 4.6.0.174.5.0.55, 4.6.0.17Patch availableCNA
WSO2WSO2 Traffic Manager4.5.0 to before 4.5.0.54; 4.6.0 to before 4.6.0.174.5.0.54, 4.6.0.17Patch availableCNA
WSO2WSO2 Identity Server5.10.0 to before 5.10.0.383; 5.11.0 to before 5.11.0.430; 6.0.0 to before 6.0.0.257; 6.1.0 to before 6.1.0.234; 6.1.0 to before 6.1.0.257; 7.0.0 to before 7.0.0.133; 7.1.0 to before 7.1.0.41; 7.2.0 to before 7.2.0.35.10.0.383, 5.11.0.430, 6.0.0.257, 6.1.0.234, 6.1.0.257, 7.0.0.133, 7.1.0.41, 7.2.0.3Patch availableCNA
WSO2WSO2 Identity Server as Key Manager5.10.0 to before 5.10.0.3745.10.0.374Patch availableCNA
WSO2WSO2 Open Banking AM2.0.0 to before 2.0.0.4032.0.0.403Patch availableCNA
WSO2WSO2 Open Banking IAM2.0.0 to before 2.0.0.4232.0.0.423Patch availableCNA
WSO2WSO2 Carbon Identity Management Endpoint Util5.17.5 to before 5.17.5.332; 5.18.187 to before 5.18.187.330; 5.23.8 to before 5.23.8.213; 5.25.92 to before 5.25.92.167; 7.0.78 to before 7.0.78.1625.17.5.332, 5.18.187.330, 5.23.8.213, 5.25.92.167, 7.0.78.162, xPatch availableCNA
WSO2WSO2 Carbon Identity Application Authentication Framework5.17.5 to before 5.17.5.332; 5.18.187 to before 5.18.187.3305.17.5.332, 5.18.187.330, xPatch availableCNA
  • WSO2 API Manager VendorWSO2 Affected 3.1.0 to before 3.1.0.354; 3.2.0 to before 3.2.0.458; 3.2.0 to before 3.2.0.478; 3.2.1 to before 3.2.1.96; 4.0.0 to before 4.0.0.379; 4.1.0 to before 4.1.0.262; 4.2.0 to before 4.2.0.200; 4.3.0 to before 4.3.0.112; 4.4.0 to before 4.4.0.72; 4.5.0 to before 4.5.0.55; 4.6.0 to before 4.6.0.17 Fixed in 3.1.0.354, 3.2.0.458, 3.2.0.478, 3.2.1.96, 4.0.0.379, 4.1.0.262, 4.2.0.200, 4.3.0.112, 4.4.0.72, 4.5.0.55, 4.6.0.17 Patch available CNA
  • WSO2 API Control Plane VendorWSO2 Affected 4.5.0 to before 4.5.0.56; 4.6.0 to before 4.6.0.18 Fixed in 4.5.0.56, 4.6.0.18 Patch available CNA
  • WSO2 Universal Gateway VendorWSO2 Affected 4.5.0 to before 4.5.0.55; 4.6.0 to before 4.6.0.17 Fixed in 4.5.0.55, 4.6.0.17 Patch available CNA
  • WSO2 Traffic Manager VendorWSO2 Affected 4.5.0 to before 4.5.0.54; 4.6.0 to before 4.6.0.17 Fixed in 4.5.0.54, 4.6.0.17 Patch available CNA
  • WSO2 Identity Server VendorWSO2 Affected 5.10.0 to before 5.10.0.383; 5.11.0 to before 5.11.0.430; 6.0.0 to before 6.0.0.257; 6.1.0 to before 6.1.0.234; 6.1.0 to before 6.1.0.257; 7.0.0 to before 7.0.0.133; 7.1.0 to before 7.1.0.41; 7.2.0 to before 7.2.0.3 Fixed in 5.10.0.383, 5.11.0.430, 6.0.0.257, 6.1.0.234, 6.1.0.257, 7.0.0.133, 7.1.0.41, 7.2.0.3 Patch available CNA
  • WSO2 Identity Server as Key Manager VendorWSO2 Affected 5.10.0 to before 5.10.0.374 Fixed in 5.10.0.374 Patch available CNA
  • WSO2 Open Banking AM VendorWSO2 Affected 2.0.0 to before 2.0.0.403 Fixed in 2.0.0.403 Patch available CNA
  • WSO2 Open Banking IAM VendorWSO2 Affected 2.0.0 to before 2.0.0.423 Fixed in 2.0.0.423 Patch available CNA
  • WSO2 Carbon Identity Management Endpoint Util VendorWSO2 Affected 5.17.5 to before 5.17.5.332; 5.18.187 to before 5.18.187.330; 5.23.8 to before 5.23.8.213; 5.25.92 to before 5.25.92.167; 7.0.78 to before 7.0.78.162 Fixed in 5.17.5.332, 5.18.187.330, 5.23.8.213, 5.25.92.167, 7.0.78.162, x Patch available CNA
  • WSO2 Carbon Identity Application Authentication Framework VendorWSO2 Affected 5.17.5 to before 5.17.5.332; 5.18.187 to before 5.18.187.330 Fixed in 5.17.5.332, 5.18.187.330, x Patch available CNA

CPE names Threatist (inferred) · 2

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:*——WSO2
cpe:2.3:a:wso2:identity_server:*:*:*:*:*:*:*:*——WSO2
  • cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:* Versions — — ·WSO2
  • cpe:2.3:a:wso2:identity_server:*:*:*:*:*:*:*:* Versions — — ·WSO2

Remediation

  • Fix · CNA WSO2 API Manager (WSO2) Fixed in 3.1.0.354, 3.2.0.458, 3.2.0.478, 3.2.1.96, 4.0.0.379, 4.1.0.262, 4.2.0.200, 4.3.0.112, 4.4.0.72, 4.5.0.55, 4.6.0.17
  • Fix · CNA WSO2 API Control Plane (WSO2) Fixed in 4.5.0.56, 4.6.0.18
  • Fix · CNA WSO2 Universal Gateway (WSO2) Fixed in 4.5.0.55, 4.6.0.17
  • Fix · CNA WSO2 Traffic Manager (WSO2) Fixed in 4.5.0.54, 4.6.0.17
  • Fix · CNA WSO2 Identity Server (WSO2) Fixed in 5.10.0.383, 5.11.0.430, 6.0.0.257, 6.1.0.234, 6.1.0.257, 7.0.0.133, 7.1.0.41, 7.2.0.3
  • Fix · CNA WSO2 Identity Server as Key Manager (WSO2) Fixed in 5.10.0.374
  • Fix · CNA WSO2 Open Banking AM (WSO2) Fixed in 2.0.0.403
  • Fix · CNA WSO2 Open Banking IAM (WSO2) Fixed in 2.0.0.423
  • Fix · CNA WSO2 Carbon Identity Management Endpoint Util (WSO2) Fixed in 5.17.5.332, 5.18.187.330, 5.23.8.213, 5.25.92.167, 7.0.78.162, x
  • Fix · CNA WSO2 Carbon Identity Application Authentication Framework (WSO2) Fixed in 5.17.5.332, 5.18.187.330, x

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-5802
  2. 2026-10-03 Alias added: GHSA-6cgx-wc6q-rrj4

References

Advisory 1

  • TI-2026-04755 Authentication Bypass via JWT Algorithm Mismatch in Multiple WSO2 Products Allows Account Takeover KEVCVSS 3.1CRITICAL 10.0
  • TI-2022-11928 Certain WSO2 products allow unrestricted file upload with resultant remote code execution. KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-18808 An issue was discovered in WSO2 Enterprise Integrator 6.4.0. CVSS 3.1MEDIUM 6.1
  • TI-2020-15069 The Management Console in WSO2 API Manager through 3.1.0 and API Microgateway 2.2.0… CVSS 3.1CRITICAL 9.1
  • TI-2023-15163 A reflected cross-site scripting (XSS) vulnerability in /authenticationendpoint/login.do… CVSS 3.1MEDIUM 6.1
  • TI-2022-04130 WSO2 carbon-registry Advanced Search advancedSearchForm-ajaxprocessor.jsp cross site scripting CVSS 3.1MEDIUM 6.1
See all 186 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences