Is Image Translator - Manga Translator safe?
Image Translator - Manga Translator sends image URLs with site cookies and stored bearer tokens to translateimage.app.
When translating an image by URL, the extension collects headers from the current page, including document cookies and bearer-like values stored in localStorage. It sends those headers, along with the image URL and the user's translateimage.app account email, to the translateimage.app translation API.
Who publishes itTavern - 1 other listing from the same operator, none carrying a finding
Tavern - 1 other listing from the same operator, none carrying a finding
What this publisher told the store about itself, and the other listings that told it the same thing.
Same store account
1 other listing published from this account, 2k+ users between them, none of them carrying a finding.
AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.
Publishers can request a review.
Findings
Image translation sends site cookies and tokens to translateimage.app
Translating an image by URL makes the extension gather the page URL, cookies, bearer-style localStorage values, and x-* meta headers, then send them to the background worker, which posts them to translateimage.app.
- Severity
- High unwanted
- Type
- Unexpected
- CWE
- CWE-522
- Source
- Dynamic sandbox
You ask the extension to translate an image from the current page.
This can happen from the visible image-translation button or the extension's automatic translation queue.
The extension packages the image URL with page cookies, bearer-style localStorage tokens, and header metadata.
The background service worker sends those values to the translateimage.app image translation endpoint.
- Site cookiessid=s%3A7mX9v2QkR4.example-session; theme=dark (illustrative)
Cookies can identify your signed-in browser session for the site that hosts the image.
- Bearer tokenBearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMDAxIn0.9h9VQm2p1G3o2rL8nK7s (illustrative)
A bearer token can let a service treat whoever holds it as an authenticated session.
- Current page URLhttps://workspace.example.com/projects/alpha/report.html (illustrative)
The referrer shows the page where you requested image translation.
- Image URLhttps://cdn.example.com/private/receipt-2026-07.png (illustrative)
The image URL reveals the exact resource you asked the extension to translate.
- Page meta headersx-workspace: northwind-finance (illustrative)
Page-provided x-* metadata can add site-specific context to the translation request.
Content script collects page credentials and forwards them with the image URL
Readable captureCurrentPageHeaders method
contents.e02f0287.jsasync captureCurrentPageHeaders(imageUrl) { const headers = { Referer: window.location.href, Origin: window.location.origin, Accept: "image/avif,image/webp,image/apng,image/jpeg,image/svg+xml,image/*,*/*;q=0.8", "User-Agent": navigator.userAgent }; try { const resources = performance.getEntriesByType("resource"); const imageHost = new URL(imageUrl).hostname; const matchingImageResources = resources.filter((entry) => { if (entry.name === imageUrl) { return true; } try { const entryUrl = new URL(entry.name); return entryUrl.hostname === imageHost && (entry.initiatorType === "img" || /\.(jpg|jpeg|png|gif|webp)$/i.test(entryUrl.pathname)); } catch (error) { return false; } }); if (matchingImageResources.length > 0) { document.querySelectorAll('meta[name^="x-"]').forEach((meta) => { const name = meta.getAttribute("name"); const content = meta.getAttribute("content"); if (name && content) { headers[name] = content; } }); if (document.cookie) { headers.Cookie = document.cookie; } const token = localStorage.getItem("authToken") || localStorage.getItem("token") || localStorage.getItem("authorization"); if (token) { headers.Authorization = `Bearer ${token}`; } } } catch (error) { console.error("Error capturing page headers:", error); } return headers;}Readable runtime message sender
contents.e02f0287.jsasync sendTranslationRequestWithUrl(imageUrl, headers, from, to, mode = "normal", detectionMode, textDirection, mangaFont) { return new Promise((resolve, reject) => { const timeout = setTimeout(() => { reject(Error("Translation request timeout, please try again.")); }, 30000); chrome.runtime.sendMessage({ name: "translate-image-url", body: { imageUrl, headers, from, to, detectionMode, textDirection, mangaFont } }, (response) => { clearTimeout(timeout); if (chrome.runtime.lastError) { reject(Error(chrome.runtime.lastError.message)); return; } resolve(response); }); });}Background service worker serializes the collected headers into the API request
Readable translate-image-url handler
static/background/index.jsconst handleTranslateImageUrl = async (request, responder) => { try { const user = await StorageService.getUser(); if (!user) { console.log("User not logged in"); return responder.send({ error_code: "401", error_msg: "Not logged in, please log in first" }); } try { console.log("Sending request to translation API with URL:", request.body.imageUrl); const startedAt = performance.now(); const form = new FormData(); form.append("image_url", request.body.imageUrl); form.append("headers", JSON.stringify(request.body.headers)); form.append("from", request.body.from); form.append("to", request.body.to); form.append("source", "chrome-extension"); const response = await fetch("https://api.translateimage.app/api/translate/image", { method: "POST", headers: { Authorization: `Bearer ${user.email}` }, body: form }); const finishedAt = performance.now(); console.log(`Translation API request took ${finishedAt - startedAt}ms`); if (!response.ok) { console.warn("Translation API error:", { status: response.status, statusText: response.statusText }); if (response.status === 401) { await StorageService.removeUser(); chrome.runtime.sendMessage({ type: "LOGIN_STATE_CHANGED", isLoggedIn: false }); return responder.send({ error_code: "401", error_msg: "Login has expired, please login again" }); } if (response.status === 403) { return responder.send({ error_code: "403", error_msg: "Quota exceeded" }); } return responder.send({ error_code: String(response.status), error_msg: "Translation request failed, maybe the image is not supported" }); } const payload = await response.json(); if (!payload || payload.success !== true) { const errorCode = String(payload?.error_code || payload?.errorCode || "500"); const errorMessage = payload?.error_msg || payload?.errorMessage || "Translation failed"; return responder.send({ error_code: errorCode, error_msg: errorMessage }); } let translatedImage = null; try { if (payload.resultUrl) { const resultResponse = await fetch(payload.resultUrl); if (resultResponse.ok) { const blob = await resultResponse.blob(); translatedImage = await new Promise((resolve, reject) => { const reader = new FileReader(); reader.onloadend = () => { const result = reader.result; const base64 = result.includes(",") ? result.split(",")[1] : result; resolve(base64); }; reader.onerror = reject; reader.readAsDataURL(blob); }); } } } catch (error) { console.warn("Failed to fetch resultUrl image, will try fallback to result.data:", error); } if (!translatedImage) { const fallback = payload?.result?.data?.image || payload?.result?.data?.pasteImg; if (typeof fallback === "string") { translatedImage = fallback.replace(/^data:image\/[a-zA-Z+]+;base64,/, ""); } } if (!translatedImage) { return responder.send({ error_code: "500", error_msg: "No translated image received" }); } const result = { error_code: "0", error_msg: "", data: { image: translatedImage, image_data: translatedImage } }; console.log("Translation completed successfully via resultUrl -> base64"); return responder.send(result); } catch (error) { console.error("Translation processing error:", error); return responder.send({ error_code: "500", error_msg: "Network error, please switch network and try again" }); } } catch (error) { console.error("Translation handler error:", error); return responder.send({ error_code: "500", error_msg: "Internal error: " + (error.message || "Unknown error") }); }};- api.translateimage.app
Receives the image URL, serialized page headers, source/target languages, and the extension account authorization header for image translation.
What it can do
Permissions this extension asks for, as declared in version 2.4.8. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.
Read and change your data on every secure site you visit
https://*/*
Store data in your browser
storage
Sign you in with your Google account
identity
See the email address of your Google account
identity.email
Act on the current tab, but only after you click the extension
activeTab
See the address and title of every tab you have open
tabs
Where it sends data
Destinations our analysis observed Image Translator - Manga Translator contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.
- api.translateimage.app
Image Translator - Manga Translator sends data to api.translateimage.app. No other extension we have analysed sends data here.