Vulnerability in Wso2 API Manager

CVE-2024-12139

The error handling implementation fails to properly sanitize or validate user-supplied input within URL parameters under specific conditions. This allows end-users to manipulate the error messages that are displayed by the application. By exploiting this vulnerability, malicious actors can inject arbitrary content into error messages. This enables them to perform social engineering attacks, such as phishing or credential theft, by replacing legitimate error messages with malicious content, misleading users into compromising sensitive information or taking harmful actions.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2024-12139?
CVE-2024-12139 is a medium-severity vulnerability in Wso2 API Manager, classified under Improper Encoding or Escaping of Output. CVSS score: 4.3/10. Published 2026-11-02.
How severe is CVE-2024-12139?
Medium severity. CVSS v3 base score is 4.3 out of 10.