Is EndNote Click safe?
EndNote Click validates postMessage origins via substring match, allowing spoofed domains to relay commands to its PDF and export handlers.
The extension's content script on kopernio.com and click.endnote.com listens for postMessages and validates the sender's origin using a substring match rather than strict equality. An origin containing 'https://click.endnote.com' as a substring (e.g. 'https://click.endnote.com.attacker.com') passes this check and can relay messages to background handlers including BgUploadPdf, BgSmartRisExport, and BgDownloadPdf. Exploitation requires the user to visit a crafted page while the extension is active.
Part of this rating comes from analysis signals we haven't published as detailed findings yet.
Who publishes itClarivate - 1 other listing from the same operator, none carrying a finding
Clarivate - 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 operator - 1 listing
Published under a different store account, but sharing the registered address, contact or declared legal entity this one gave the store.
Shared hosts - 1 hostname
Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.
AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.
Publishers can request a review.
What it can do
Permissions this extension asks for, as declared in version 3.5.0. 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 site you visit
<all_urls>
Store data in your browser
storage
See every page you navigate to, as you navigate to it
webNavigation
Block and redirect the requests your browser makes
declarativeNetRequest