What’s Vulnerable › Vulnerabilities
CVE-2026-3096: Reverse Tabnabbing via New Tab Navigation in Multiple WSO2 Products Allows Phishing and Credential Theft
- Severity: medium (CVSS 4.7 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-10 · updated 2026-09-18
- Weakness: CWE-20
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.
Affected products
- WSO2 API Manager: from 3.2.0 before 3.2.0.468; from 3.2.1 before 3.2.1.87; from 4.1.0 before 4.1.0.252; from 4.2.0 before 4.2.0.192; from 4.3.0 before 4.3.0.103; from 4.4.0 before 4.4.0.67 — fixed in 3.2.0.468, 3.2.1.87, 4.1.0.252, 4.2.0.192, 4.3.0.103, 4.4.0.67
- WSO2 API Control Plane: from 4.5.0 before 4.5.0.54; from 4.6.0 before 4.6.0.18 — fixed in 4.5.0.54, 4.6.0.18
How to fix
Upgrade to a fixed version: WSO2 API Manager 3.2.0.468, 3.2.1.87, 4.1.0.252, 4.2.0.192; WSO2 API Control Plane 4.5.0.54, 4.6.0.18. Check the vendor advisory for mitigations.
References
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