Is Gemini & Nano Banana Watermark Remover — 1-Click Clean, Batch ZIP Export safe?

Medium risk

GRemover is medium risk. After the subscription flow opens, the extension repeatedly checks its subscription API using a stored token. Requests go to gremover.extensionfox.com/api/subscription/current with the token, sent every few seconds for up to 10 minutes.…

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49Risk

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

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Findings

Subscription polling repeatedly sends the stored account token.

After the subscription flow opens, the extension repeatedly checks its subscription API using a stored token.

Requests go to gremover.extensionfox.com/api/subscription/current with the token, sent every few seconds for up to 10 minutes.

Severity
Medium unwanted
Type
Unexpected
CWE
CWE-200
Source
Dynamic sandbox
What actually happens
You did this

The subscription flow is opened.

The extension did this

The extension starts recurring subscription-status checks and includes the stored account token in each request.

Captured request
GEThttps://gremover.extensionfox.com/api/subscription/current
Fields in the request
  • Stored extension data
    Bearer abc123... (illustrative)

    This request uses data kept by the extension for account authorization, including the token used to check subscription status.

Observation

Dynamic analysis observed 344 repeated subscription-status requests after the subscription flow was triggered. A planted marker value was transmitted in the authorization header, confirming that the stored token was included on each request.

Usage reports send subscription data after image processing.

When you process an image with this extension, it reports usage to gremover.extensionfox.com.

The request is tied to stored subscription data and includes a watermark-removal count and request identifier.

Severity
Medium unwanted
Type
Unexpected
CWE
CWE-359
Source
Dynamic sandbox
What actually happens
You did this

The user processes an image with the watermark-removal workflow.

The extension did this

The extension sends a usage report containing stored subscription data, a count, and a request identifier.

Captured request
POSThttps://gremover.extensionfox.com/api/usage/
Fields in the request
  • Stored subscription data
    subscription_id: sub_12345 (illustrative)

    Links the usage report to subscription-related extension storage rather than only to the current page action.

Observation

A later verification row confirmed the usage-reporting path from the extension code. An earlier dynamic-analysis attempt did not reach the endpoint because the workflow required a logged-in Gemini image-generation session.

Updated 30 September 2026gjlkhppnlphboplcajfadahapnohbiam