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3191 articles · 168085 vulns · 37/41 feeds (7d)
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5.3
CVE-2024-0391EXPLOITEDPATCHED
wso2 · wso2 identity server

Username Enumeration via Email OTP Flow in Multiple WSO2 Products Allows User Account Discovery

Description

The check user account lock states feature within the email OTP flow fails to validate user input, allowing an attacker to infer the existence of registered user accounts. The discovery of valid usernames can increase the risk of brute-force and social engineering attacks. Attackers can leverage this information to craft targeted phishing campaigns or other malicious activities aimed at tricking users into divulging sensitive data, potentially damaging the organization's reputation and leading to regulatory non-compliance and financial consequences.

Affected Products

VendorProductVersions
wso2wso2 identity server5.10.0, 5.11.0, 5.11.0, 6.0.0, 6.1.0, 7.0.0, 2.0.0, 5.10.0, 1.0.18, 4.1.0, 4.1.4, 3.0.5, 3.0.24, 3.0.26

References

  • https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2024-3115/(vendor-advisory)

Related News (1 articles)

Tier C
VulDB47d ago
CVE-2024-0391 | WSO2 Identity Server prior 7.0.0.131 response discrepancy
→ No new info (linked only)
CVSS 3.15.3 MEDIUM
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CISA KEV❌ No
Actively exploited✅ Yes
Patch available
5.10.0.3795.11.0.4265.11.0.4316.0.0.2536.1.0.2547.0.0.1312.0.0.3185.10.0.2671.0.18.71.0.244.1.0.84.1.4.94.1.223.0.5.83.0.24.63.0.26.16
CWECWE-204
PublishedMay 11, 2026
Last enriched47d agov2
Trending Score0
Source articles1
Independent1
Info Completeness9/14
Missing: epss, kev, exploit, iocs, mitre_attack

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Related CVEs (5)

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Unauthenticated Server-Side Request Forgery via WS-Addressing in WSO2 API Manager
Trending: 54
HIGHCVE-2025-10908EXP
Account Lock Bypass via Magic Link or Pass Key Authentication in WSO2 Identity Server Allows Unauthorized Access
MEDIUMCVE-2025-9973
Authorization Bypass via Adaptive Authentication in WSO2 Identity Server Allows Cross-Organization Account Takeover
MEDIUMCVE-2025-8325EXP
Improper Access Control via Gateway API in Multiple WSO2 Products Allows Unauthorized Operations
HIGHCVE-2024-2374
XML External Entity Injection in Multiple WSO2 Products Allows Arbitrary file read and Denial of Service

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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
May 11, 2026
Discovered by ZDM
May 11, 2026
Updated: severity, activelyExploited
May 11, 2026
Actively Exploited
May 11, 2026
Patch Available
May 11, 2026

Version History

v2
Last enriched 47d ago
v2Tier C47d ago

Updated product list to include Open Banking IAM and changed severity to HIGH, while noting that no exploit is available.

severityactivelyExploited
via VulDB
v147d ago

Initial creation