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Medium 4.3Published May 11, 2026

CVE-2024-0391The 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.

Updated under an hour ago ()

Does this affect you?

It affects wso2 identity_server and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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
4.3 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Weakness (CWE)
CWE-204
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Not given
NVD analysis
Analyzed
Record last updated
Jun 17, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
wso2 identity_server
wso2:identity_server
from 5.10.0 before 5.10.0.379; from 5.11.0 before 5.11.0.426; from 6.0.0 before 6.0.0.253; from 6.1.0 before 6.1.0.254; from 7.0.0 before 7.0.0.131
NVD
wso2 identity_server_as_key_manager
wso2:identity_server_as_key_manager
from 5.10.0 before 5.10.267
NVD
wso2 open_banking_iam
wso2:open_banking_iam
from 2.0.0 before 2.0.0.318
NVD

References

  • vendor-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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