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TI-2024-39147 Aliases CVE-2024-7478GHSA-5qcp-39qg-fmp5

Username enumeration in WSO2 products with external user stores

Priority LOW 32CWE-204Published · 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-204.

Summary

WSO2 API Manager, WSO2 Identity Server as Key Manager, WSO2 Identity Server, WSO2 Open Banking IAM, WSO2 Open Banking AM, and other products are affected when they use an external user store. The authentication process does not adequately hide whether a username exists, so an unauthenticated remote attacker can repeatedly submit username guesses and learn which accounts exist (CWE-204). Valid usernames can then support targeted brute-force attacks and phishing.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Description from the CNA

When a WSO2 product is configured to use an external user store, the system fails to adequately obscure the existence or validity of usernames during authentication attempts. This oversight allows an attacker to repeatedly query the authentication mechanism with different username guesses, enabling the enumeration of valid usernames present in the external user store. The discovery of valid usernames can increase the risk of targeted brute-force attacks, social engineering, and information leakage. Attackers can leverage this information to craft more convincing phishing campaigns or other social engineering tactics to trick users into revealing sensitive data. The presence of username enumeration could also negatively impact an organization's reputation, leading to loss of customer trust, regulatory non-compliance, and potential legal and financial repercussions.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00235 14th percentileScored 2026-11-07
Fix Fixed WSO2 API Manager (WSO2): 3.1.0.310, 3.2.0.401, 3.2.1.26 +4WSO2 Identity Server as Key Manager (WSO2): 5.10.0.320+4 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 3.1.0.310; 3.2.0 to before 3.2.0.401; 3.2.1 to before 3.2.1.26; 4.0.0 to before 4.0.0.318; 4.1.0 to before 4.1.0.180; 4.2.0 to before 4.2.0.119; 4.3.0 to before 4.3.0.303.1.0.310, 3.2.0.401, 3.2.1.26, 4.0.0.318, 4.1.0.180, 4.2.0.119, 4.3.0.30Patch availableCNA
WSO2WSO2 Identity Server as Key Manager5.10.0 to before 5.10.0.3205.10.0.320Patch availableCNA
WSO2WSO2 Identity Server5.10.0 to before 5.10.0.326; 6.0.0 to before 6.0.0.214; 6.1.0 to before 6.1.0.198; 7.0.0 to before 7.0.0.675.10.0.326, 6.0.0.214, 6.1.0.198, 7.0.0.67Patch availableCNA
WSO2WSO2 Open Banking IAM2.0.0 to before 2.0.0.3712.0.0.371Patch availableCNA
WSO2WSO2 Open Banking AM2.0.0 to before 2.0.0.3512.0.0.351Patch availableCNA
WSO2WSO2 Carborn Identity Handler1.4.0 to before 1.4.0.15; 1.4.0 to before 1.4.0.16; 1.4.11 to before 1.4.11.14; 1.4.37 to before 1.4.37.1; 1.6.1 to before 1.6.1.5; 1.7.1 to before 1.7.1.1; 1.8.6 to before 1.8.6.5; 1.8.14 to before 1.8.14.1; 1.9.2 to before 1.9.2.41.4.0.15, 1.4.0.16, 1.4.11.14, 1.4.37.1, 1.6.1.5, 1.7.1.1, 1.8.6.5, 1.8.14.1, 1.9.2.4Patch availableCNA
  • WSO2 API Manager VendorWSO2 Affected 3.1.0 to before 3.1.0.310; 3.2.0 to before 3.2.0.401; 3.2.1 to before 3.2.1.26; 4.0.0 to before 4.0.0.318; 4.1.0 to before 4.1.0.180; 4.2.0 to before 4.2.0.119; 4.3.0 to before 4.3.0.30 Fixed in 3.1.0.310, 3.2.0.401, 3.2.1.26, 4.0.0.318, 4.1.0.180, 4.2.0.119, 4.3.0.30 Patch available CNA
  • WSO2 Identity Server as Key Manager VendorWSO2 Affected 5.10.0 to before 5.10.0.320 Fixed in 5.10.0.320 Patch available CNA
  • WSO2 Identity Server VendorWSO2 Affected 5.10.0 to before 5.10.0.326; 6.0.0 to before 6.0.0.214; 6.1.0 to before 6.1.0.198; 7.0.0 to before 7.0.0.67 Fixed in 5.10.0.326, 6.0.0.214, 6.1.0.198, 7.0.0.67 Patch available CNA
  • WSO2 Open Banking IAM VendorWSO2 Affected 2.0.0 to before 2.0.0.371 Fixed in 2.0.0.371 Patch available CNA
  • WSO2 Open Banking AM VendorWSO2 Affected 2.0.0 to before 2.0.0.351 Fixed in 2.0.0.351 Patch available CNA
  • WSO2 Carborn Identity Handler VendorWSO2 Affected 1.4.0 to before 1.4.0.15; 1.4.0 to before 1.4.0.16; 1.4.11 to before 1.4.11.14; 1.4.37 to before 1.4.37.1; 1.6.1 to before 1.6.1.5; 1.7.1 to before 1.7.1.1; 1.8.6 to before 1.8.6.5; 1.8.14 to before 1.8.14.1; 1.9.2 to before 1.9.2.4 Fixed in 1.4.0.15, 1.4.0.16, 1.4.11.14, 1.4.37.1, 1.6.1.5, 1.7.1.1, 1.8.6.5, 1.8.14.1, 1.9.2.4 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

Fixed versions for WSO2 API Manager are 3.1.0.310, 3.2.0.401, 3.2.1.26, 4.0.0.318, 4.1.0.180, 4.2.0.119 and 4.3.0.30. WSO2 Identity Server as Key Manager is fixed in 5.10.0.320, and WSO2 Identity Server in 5.10.0.326, 6.0.0.214, 6.1.0.198 and 7.0.0.67. WSO2 Open Banking IAM is fixed in 2.0.0.371, WSO2 Open Banking AM in 2.0.0.351, and WSO2 Carborn Identity Handler in 1.4.0.15, 1.4.0.16, 1.4.11.14, 1.4.37.1, 1.6.1.5, 1.7.1.1, 1.8.6.5, 1.8.14.1 and 1.9.2.4.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

  • Fix · CNA WSO2 API Manager (WSO2) Fixed in 3.1.0.310, 3.2.0.401, 3.2.1.26, 4.0.0.318, 4.1.0.180, 4.2.0.119, 4.3.0.30
  • Fix · CNA WSO2 Identity Server as Key Manager (WSO2) Fixed in 5.10.0.320
  • Fix · CNA WSO2 Identity Server (WSO2) Fixed in 5.10.0.326, 6.0.0.214, 6.1.0.198, 7.0.0.67
  • Fix · CNA WSO2 Open Banking IAM (WSO2) Fixed in 2.0.0.371
  • Fix · CNA WSO2 Open Banking AM (WSO2) Fixed in 2.0.0.351
  • Fix · CNA WSO2 Carborn Identity Handler (WSO2) Fixed in 1.4.0.15, 1.4.0.16, 1.4.11.14, 1.4.37.1, 1.6.1.5, 1.7.1.1, 1.8.6.5, 1.8.14.1, 1.9.2.4

Timeline

  1. 2026-10-21 Threatist record created from CVE-2024-7478
  2. 2026-10-21 Alias added: GHSA-5qcp-39qg-fmp5
  3. 2026-10-23 Priority changed: MEDIUM → LOW
  4. 2026-10-30 CISA SSVC decision points changed

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