What’s Vulnerable › Vulnerabilities

CVE-2024-4989: Open Redirection via Callback URL in WSO2 API Manager Allows Phishing Attacks

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-21 · updated 2026-10-30
• Weakness: CWE-601

Description

The callback URL parameter in WSO2 API Manager fails to validate user-supplied input, allowing it to be controlled by malicious actors. Exploitation of this vulnerability could lead to users being redirected to attacker-controlled web pages. This can be used in conjunction with social engineering techniques to trick users into interacting with malicious links, potentially resulting in phishing attacks aimed at acquiring sensitive information or causing other harm.

Affected products

• WSO2 API Manager: from 4.1.0 before 4.1.0.153; from 4.2.0 before 4.2.0.105; from 4.3.0 before 4.3.0.20 — fixed in 4.1.0.153, 4.2.0.105, 4.3.0.20

How to fix

Upgrade to a fixed version: WSO2 API Manager 4.1.0.153, 4.2.0.105, 4.3.0.20. Check the vendor advisory for mitigations.

References

• https://github.com/wso2/product-apim/pull/13502
• https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2024-3403/

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