CVE-2026-3096

Reverse Tabnabbing via New Tab Navigation in Multiple WSO2 Products Allows Phishing and Credential Theft

State: Published
Severity: 4.7 Medium
Published: Sep 10, 2026
Updated: Sep 11, 2026
Reserved: Feb 24, 2026

Description

The product's web portals allow external links to be opened in a new browser tab. In certain configurations, the originating window retains access to the newly opened page, allowing interaction between the two browser contexts when navigating to external destinations.

This vulnerability could allow an attacker to manipulate the original trusted application window after a user clicks a malicious external link. This manipulation can lead to users being redirected to phishing pages, enabling credential theft, or facilitating other unauthorized actions within the context of the trusted site.

Scores

CVSS	Score	Vector	Source
3.1	4.7 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N	WSO2

Weaknesses

CWE-20 Improper Input Validation
CWE-603 Use of Client-Side Access Control

Affected Products

Product	Versions
WSO2 API Control PlaneWSO2	4.5.0 to before 4.5.0.54Affected 4.6.0 to before 4.6.0.18Affected
WSO2 API ManagerWSO2	before 3.2.0Unknown 3.2.0 to before 3.2.0.468Affected 3.2.1 to before 3.2.1.87Affected 4.1.0 to before 4.1.0.252Affected 4.2.0 to before 4.2.0.192Affected 4.3.0 to before 4.3.0.103Affected 4.4.0 to before 4.4.0.67Affected 4.5.0 to before 4.5.0.52Affected 4.6.0 to before 4.6.0.16Affected

References

https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2026-5164/vendor-advisory

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