CVE-2025-5769 PUBLISHED

Reflected Cross-Site Scripting via Authentication Endpoint in Multiple WSO2 Products Allows Browser Redirection and UI Modification

Assigner: WSO2
Reserved: 06.06.2025 Published: 03.11.2026 Updated: 03.11.2026

The authentication endpoint does not properly encode user-supplied input before rendering it within the web page. This lack of output encoding allows an attacker to inject malicious JavaScript payloads into the authentication flow, which are then executed by the victim's browser.

By exploiting this vulnerability, an attacker can redirect the user's browser to a malicious website, modify the content of the web page displayed to the user, or exfiltrate information from the browser. However, due to the implementation of the httpOnly flag on session-related sensitive cookies, session hijacking and similar attacks are not possible.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS Score: 6.1

Product Status

Vendor WSO2
Product WSO2 API Control Plane
Versions Default: unaffected
  • affected from 4.5.0 to 4.5.0.11 (excl.)
Vendor WSO2
Product WSO2 API Manager
Versions Default: unaffected
  • unknown from 0 to 3.2.0 (excl.)
  • affected from 3.2.0 to 3.2.0.430 (excl.)
  • affected from 3.2.1 to 3.2.1.50 (excl.)
  • affected from 4.1.0 to 4.1.0.212 (excl.)
  • affected from 4.2.0 to 4.2.0.150 (excl.)
  • affected from 4.3.0 to 4.3.0.63 (excl.)
  • affected from 4.4.0 to 4.4.0.26 (excl.)
  • affected from 4.5.0 to 4.5.0.10 (excl.)
Vendor WSO2
Product WSO2 Identity Server
Versions Default: unaffected
  • unknown from 0 to 5.10.0 (excl.)
  • affected from 5.10.0 to 5.10.0.359 (excl.)
  • affected from 5.11.0 to 5.11.0.404 (excl.)
  • affected from 6.0.0 to 6.0.0.237 (excl.)
  • affected from 6.1.0 to 6.1.0.234 (excl.)
  • affected from 7.0.0 to 7.0.0.107 (excl.)
  • affected from 7.1.0 to 7.1.0.12 (excl.)

Solutions

Follow the instructions given on https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4217/#solution

References

Problem Types

  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE

Impacts

  • CAPEC-82 CAPEC-82: Cross-site Scripting