# CVE-2026-3096: Reverse Tabnabbing via New Tab Navigation in Multiple WSO2 Products Allows Phishing and Credential Theft

> Attackers can exploit reverse tabnabbing in WSO2 portals to redirect users to phishing sites, potentially stealing credentials from the trusted application context.

- **Severity:** Medium 4.7 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 10 Sep 2026
- **Updated:** 11 Sep 2026
- **Also known as:** GHSA-hgfv-hm95-r744

## What is CVE-2026-3096?

CVE-2026-3096 is a medium-severity vulnerability in WSO2 API Control Plane, published on 10 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official 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.

Weakness: CWE-603 (Use of Client-Side Authentication), CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2026-3096?


## How do I fix CVE-2026-3096?

No fix has been published for CVE-2026-3096 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-3096 being exploited?

There is no known exploitation of CVE-2026-3096 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-3096 and fix it if it is affected.

What it is: CVE-2026-3096 is a medium-severity vulnerability in WSO2 API Control Plane, published on 10 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-3096 in the wild and no public exploit code.

Affected product: WSO2 API Control Plane. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-3096/ (Markdown: https://insights.sbomify.com/CVE-2026-3096/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-3096
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-3096
- OSV: https://osv.dev/vulnerability/CVE-2026-3096

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-3096/
Summaries are generated and may contain mistakes; the official description above is the record.