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CVE record · CVE-2024-0391

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

CVSS 5.3 MediumEPSS 0.0018 · 8th percentile

Published by the CVE Program (CNA: WSO2) at 11 May 2026, 08:45 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
WSO2 WSO2 Identity Server
  • unknown before 5.10.0 custom
  • affected 5.10.0 to before 5.10.0.379 custom
  • affected 5.11.0 to before 5.11.0.426 custom
  • affected 5.11.0 to before 5.11.0.431 custom
  • affected 6.0.0 to before 6.0.0.253 custom
  • affected 6.1.0 to before 6.1.0.254 custom
  • affected 7.0.0 to before 7.0.0.131 custom
Other versions: unaffected
WSO2 WSO2 Open Banking IAM
  • unknown before 2.0.0 custom
  • affected 2.0.0 to before 2.0.0.318 custom
Other versions: unaffected
WSO2 WSO2 Identity Server as Key Manager
  • unknown before 5.10.0 custom
  • affected 5.10.0 to before 5.10.0.267 custom
Other versions: unaffected
WSO2 Email OTP Authenticator Package name: org.wso2.carbon.identity.local.auth.emailotp:org.wso2.carbon.identity.local.auth.emailotp
  • affected 1.0.18 to before 1.0.18.7 custom
  • unaffected 1.0.24 to *, inclusive custom
Other versions: unknown
WSO2 WSO2 Carbon Authenticator Library For EmailOTP Package name: org.wso2.carbon.extension.identity.authenticator.outbound.emailotp:org.wso2.carbon.identity.authenticator.emailotp
  • affected 4.1.0 to before 4.1.0.8 custom
  • affected 4.1.4 to before 4.1.4.9 custom
  • unaffected 4.1.22 to *, inclusive custom
Other versions: unknown
WSO2 WSO2 Carbon Authenticator Library For EmailOTP Package name: org.wso2.carbon.extension.identity.authenticator.outbound.emailotp:org.wso2.carbon.extension.identity.authenticator.emailotp.connector
  • affected 3.0.5 to before 3.0.5.8 custom
  • affected 3.0.24 to before 3.0.24.6 custom
  • affected 3.0.26 to before 3.0.26.16 custom
Other versions: unknown
Identifiers
CVE-2024-0391
CNA
WSO2
Weakness (CWE)
CWE-204
Tags
Published
11 May 2026
Updated
11 May 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
5.3 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CNA (WSO2)
  • CISA KEV Not listed.
  • EPSS 0.0018, the 8th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 11 May 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.