CVE-2024-0391

mediumpriority · track · 17EPSS 0.002 · 8 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.18% (8th) EPSS

CVSS 4.3 · medium

Is it mine?

21 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 1.4

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · ENISA EU

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondaryexploitability 3.9 · impact 1.4

v3.14mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-204US

affected products (21)

Products and version ranges known to be affected.

WSO2 Email OTP Authenticator1.0.18 → 1.0.18.7enisa_euvdEU
WSO2 WSO2 Carbon Authenticator Library For EmailOTP3.0.24 → 3.0.24.6enisa_euvdEU
WSO2 WSO2 Carbon Authenticator Library For EmailOTP3.0.26 → 3.0.26.16enisa_euvdEU
WSO2 WSO2 Carbon Authenticator Library For EmailOTP3.0.5 → 3.0.5.8enisa_euvdEU
WSO2 WSO2 Carbon Authenticator Library For EmailOTP4.1.0 → 4.1.0.8enisa_euvdEU
WSO2 WSO2 Carbon Authenticator Library For EmailOTP4.1.4 → 4.1.4.9enisa_euvdEU
WSO2 WSO2 Identity Server5.10.0 → 5.10.0.379enisa_euvdEU
WSO2 WSO2 Identity Server5.11.0 → 5.11.0.426enisa_euvdEU
WSO2 WSO2 Identity Server5.11.0 → 5.11.0.431enisa_euvdEU
WSO2 WSO2 Identity Server6.0.0 → 6.0.0.253enisa_euvdEU
WSO2 WSO2 Identity Server6.1.0 → 6.1.0.254enisa_euvdEU
WSO2 WSO2 Identity Server7.0.0 → 7.0.0.131enisa_euvdEU
WSO2 WSO2 Identity Server as Key Manager5.10.0 → 5.10.0.267enisa_euvdEU
WSO2 WSO2 Open Banking IAM2.0.0 → 2.0.0.318enisa_euvdEU
wso2 identity server5.10.0 → 5.10.0.379nvdUScpe:2.3:a:wso2:identity_server:*:*:*:*:*:*:*:*
wso2 identity server5.11.0 → 5.11.0.426nvdUScpe:2.3:a:wso2:identity_server:*:*:*:*:*:*:*:*
wso2 identity server6.0.0 → 6.0.0.253nvdUScpe:2.3:a:wso2:identity_server:*:*:*:*:*:*:*:*
wso2 identity server6.1.0 → 6.1.0.254nvdUScpe:2.3:a:wso2:identity_server:*:*:*:*:*:*:*:*
wso2 identity server7.0.0 → 7.0.0.131nvdUScpe:2.3:a:wso2:identity_server:*:*:*:*:*:*:*:*
wso2 identity server as key manager5.10.0 → 5.10.267nvdUScpe:2.3:a:wso2:identity_server_as_key_manager:*:*:*:*:*:*:*:*

showing 20 of 21

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2026-05-11modified 2026-06-17

references (4)

External citations — patches, advisories, analysis.

scry

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