CVE-2026-3096 PUBLISHED

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

Assigner: WSO2
Reserved: 24.02.2026 Published: 10.09.2026 Updated: 10.09.2026

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.

Metrics

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

Product Status

Vendor WSO2
Product WSO2 API Control Plane
Versions Default: unaffected
  • affected from 4.5.0 to 4.5.0.54 (excl.)
  • affected from 4.6.0 to 4.6.0.18 (excl.)
Vendor WSO2
Product WSO2 API Manager
Versions Default: unaffected
  • unknown from 0 to 3.2.0 (excl.)
  • affected from 3.2.0 to 3.2.0.468 (excl.)
  • affected from 3.2.1 to 3.2.1.87 (excl.)
  • affected from 4.1.0 to 4.1.0.252 (excl.)
  • affected from 4.2.0 to 4.2.0.192 (excl.)
  • affected from 4.3.0 to 4.3.0.103 (excl.)
  • affected from 4.4.0 to 4.4.0.67 (excl.)
  • affected from 4.5.0 to 4.5.0.52 (excl.)
  • affected from 4.6.0 to 4.6.0.16 (excl.)

Solutions

Follow the instructions given on https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2026-5164/#solution

References

Problem Types

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

Impacts

  • CAPEC-24 CAPEC-24: Cross-Site Scripting
  • CAPEC-120 CAPEC-120: Tabnabbing