Is Certisign WebSigner safe?

Medium risk

Digital signature extension with postMessage handlers lacking origin validation, creating potential cross-site messaging vulnerabilities. Legitimate cryptographic tool with native messaging integration.

Certisignv2.17.2Chrome Web Store
45Risk

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

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Findings

Updated 18 May 2026acfifjfajpekbmhmjppnmmjgmhjkildl