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CVE-2026-3096

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

MEDIUM
4.7
CVSS Score
Published: September 10, 2026 at 08:40 PM UTC
Updated: September 18, 2026 at 07:29 PM UTC
2 products affected across 1 vendorAPI ManagerAPI Control Plane

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Severity
MEDIUM4.7
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

API Control Plane· WSO2
60%
4.5.0 ≤ v < 4.5.0.544.6.0 ≤ v < 4.6.0.184.5.04.6.0
Affected range stops below 4.5.0.54, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.6.0.18, so it looks safe — our inference, not a vendor statement
API Manager· WSO2
60%
3.2.0 ≤ v < 3.2.0.4683.2.1 ≤ v < 3.2.1.874.1.0 ≤ v < 4.1.0.2524.2.0 ≤ v < 4.2.0.1924.3.0 ≤ v < 4.3.0.1034.4.0 ≤ v < 4.4.0.674.5.0 ≤ v < 4.5.0.524.6.0 ≤ v < 4.6.0.163.2.03.2.14.1.04.2.04.3.04.4.04.5.04.6.0
Affected range stops below 3.2.0.468, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.2.1.87, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.1.0.252, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.2.0.192, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.3.0.103, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.4.0.67, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.5.0.52, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.6.0.16, so it looks safe — our inference, not a vendor statement
Vendor states this is fixed in 3.2.0 (unknown)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2026-5164/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.7MEDIUMWSO2
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-20CWE-603

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