DeepL vulnerabilities

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Published CVEs affecting DeepL products: 1 record(s), with severity, exploitation and fixes.

Chrome browser extension 1

Exploited only (KEV) →

CVE-2026-40451 Medium · 6.1 CWE-79 Apr 22, 2026

Cross-site Scripting (XSS) in DeepL Chrome browser extension

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.