CVE-2025-5769

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

Published Nov 3, 2026 CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Solution

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

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Wso2 api Control Plane
Wso2 api Manager
Wso2 identity Server
Vendors & Products Wso2 api Control Plane
Wso2 api Manager
Wso2 identity Server
Type Values Removed Values Added
Description 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.
Title Reflected Cross-Site Scripting via Authentication Endpoint in Multiple WSO2 Products Allows Browser Redirection and UI Modification
First Time appeared Wso2
Wso2 wso2 Api Control Plane
Wso2 wso2 Api Manager
Wso2 wso2 Identity Server
Weaknesses CWE-79
CPEs cpe:2.3:a:wso2:wso2_api_control_plane:*:*:*:*:*:*:*:*
cpe:2.3:a:wso2:wso2_api_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:wso2:wso2_identity_server:*:*:*:*:*:*:*:*
Vendors & Products Wso2
Wso2 wso2 Api Control Plane
Wso2 wso2 Api Manager
Wso2 wso2 Identity Server
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
WSO2
Published
Updated
Nov 6, 2026, 6:41 PM
Reserved
Jun 6, 2025, 3:12 AM
Status
Awaiting Analysis
Published
Nov 3, 2026, 7:17 AM
Modified
Nov 9, 2026, 7:10 PM