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CVE-2026-40451

Cross‑Site Scripting in DeepL Chrome Extension Enables Arbitrary Script Execution

DeepL Chrome browser extension versions from v1.22.0 to v.1.23.0 contain a cross-site scripting vulnerability, which allows an attacker to execute arbitrary script in a user's browser, and inject malicious HTML into web pages viewed by the user.

CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
Vendors
Deepl
Products
Chrome Browser Extension