Username Enumeration via External User Stores in Multiple WSO2 Products Allows User Account Discovery

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2024-7478
StatePUBLISHED
AssignerWSO2
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-21 14:17:06 UTC
Updated2026-10-21 18:37:59 UTC
DescriptionWhen 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.

Risk And Classification

Primary CVSS: v3.1 5.8 MEDIUM from ed10eef1-636d-4fbe-9993-6890dfa878f8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

Problem Types: CWE-204 | CWE-204 CWE-204: Indicator Discrepancies

VersionSourceTypeScoreSeverityVector
3.1ed10eef1-636d-4fbe-9993-6890dfa878f8Secondary5.8MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
3.1CNACVSS5.8MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA WSO2 WSO2 API Manager unknown 3.1.0 custom Not specified
CNA WSO2 WSO2 API Manager affected 3.1.0 3.1.0.310 custom Not specified
CNA WSO2 WSO2 API Manager affected 3.2.0 3.2.0.401 custom Not specified
CNA WSO2 WSO2 API Manager affected 3.2.1 3.2.1.26 custom Not specified
CNA WSO2 WSO2 API Manager affected 4.0.0 4.0.0.318 custom Not specified
CNA WSO2 WSO2 API Manager affected 4.1.0 4.1.0.180 custom Not specified
CNA WSO2 WSO2 API Manager affected 4.2.0 4.2.0.119 custom Not specified
CNA WSO2 WSO2 API Manager affected 4.3.0 4.3.0.30 custom Not specified
CNA WSO2 WSO2 Identity Server As Key Manager unknown 5.10.0 custom Not specified
CNA WSO2 WSO2 Identity Server As Key Manager affected 5.10.0 5.10.0.320 custom Not specified
CNA WSO2 WSO2 Identity Server unknown 5.10.0 custom Not specified
CNA WSO2 WSO2 Identity Server affected 5.10.0 5.10.0.326 custom Not specified
CNA WSO2 WSO2 Identity Server affected 6.0.0 6.0.0.214 custom Not specified
CNA WSO2 WSO2 Identity Server affected 6.1.0 6.1.0.198 custom Not specified
CNA WSO2 WSO2 Identity Server affected 7.0.0 7.0.0.67 custom Not specified
CNA WSO2 WSO2 Open Banking IAM unknown 2.0.0 custom Not specified
CNA WSO2 WSO2 Open Banking IAM affected 2.0.0 2.0.0.371 custom Not specified
CNA WSO2 WSO2 Open Banking AM unknown 2.0.0 custom Not specified
CNA WSO2 WSO2 Open Banking AM affected 2.0.0 2.0.0.351 custom Not specified
CNA WSO2 WSO2 Carborn Identity Handler affected 1.4.0 1.4.0.15 custom Not specified
CNA WSO2 WSO2 Carborn Identity Handler affected 1.4.0 1.4.0.16 custom Not specified
CNA WSO2 WSO2 Carborn Identity Handler affected 1.4.11 1.4.11.14 custom Not specified
CNA WSO2 WSO2 Carborn Identity Handler affected 1.4.37 1.4.37.1 custom Not specified
CNA WSO2 WSO2 Carborn Identity Handler affected 1.6.1 1.6.1.5 custom Not specified
CNA WSO2 WSO2 Carborn Identity Handler affected 1.7.1 1.7.1.1 custom Not specified
CNA WSO2 WSO2 Carborn Identity Handler affected 1.8.6 1.8.6.5 custom Not specified
CNA WSO2 WSO2 Carborn Identity Handler affected 1.8.14 1.8.14.1 custom Not specified
CNA WSO2 WSO2 Carborn Identity Handler affected 1.9.2 1.9.2.4 custom Not specified

References

ReferenceSourceLinkTags
security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO... ed10eef1-636d-4fbe-9993-6890dfa878f8 security.docs.wso2.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

Solutions

CNA: Follow the instructions given on https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2024-3606/#solution

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