Description

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.

INFO

Published Date :

2026-04-22T04:28:49.657Z

Last Modified :

2026-04-22T12:38:36.513Z

Source :

jpcert
AFFECTED PRODUCTS

The following products are affected by CVE-2026-40451 vulnerability.

Vendors Products
Deepl
  • Chrome Browser Extension
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-40451.

URL Resource
https://github.com/DeepLcom/deepl-chrome-extension/security/advisories/GHSA-4x2r-q3p9-xhx4 cve-icon cve-icon
https://jvn.jp/en/jp/JVN37524771/ cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact