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    3 vulnerabilities by DeepL

    JVNDB-2026-000060

    Vulnerability from jvndb - Published: 2026-04-22 15:45 - Updated:2026-04-22 15:45
    Severity
    6.1 (Medium) - cvssV3_0 - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    Summary
    DeepL Chrome browser extension vulnerable to cross-site scripting
    Details
    DeepL Chrome browser extension contains the following vulnerability.
    • Cross-site scripting (CWE-79) - CVE-2026-40451
    This vulnerability was reported by the researchers below and JPCERT/CC coordinated with the developer. Junki Yuasa of Cybozu, Inc. reported this vulnerability to JPCERT/CC. Keitaro Yamazaki of GMO Cybersecurity by Ierae reported this vulnerability to IPA under Information Security Early Warning Partnership.
    References
    Impacted products
    Show details on JVN DB website
    To clipboard 

    {
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000060.html",
  "dc:date": "2026-04-22T15:45+09:00",
  "dcterms:issued": "2026-04-22T15:45+09:00",
  "dcterms:modified": "2026-04-22T15:45+09:00",
  "description": "DeepL Chrome browser extension contains the following vulnerability.\u003ca href=\u0027https://cwe.mitre.org/data/definitions/79.html\u0027 target=\u0027_blank\u0027\u003e\u003c/a\u003e\u003cul\u003e\u003cli\u003eCross-site scripting (CWE-79) - CVE-2026-40451\u003c/li\u003e\u003c/ul\u003eThis vulnerability was reported by the researchers below and JPCERT/CC coordinated with the developer.\r\nJunki Yuasa of Cybozu, Inc. reported this vulnerability to JPCERT/CC.\r\nKeitaro Yamazaki of GMO Cybersecurity by Ierae reported this vulnerability to IPA under Information Security Early Warning Partnership.",
  "link": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000060.html",
  "sec:cpe": {
    "#text": "cpe:/a:misc:deepl_deepl",
    "@product": "DeepL",
    "@vendor": "DeepL",
    "@version": "2.2"
  },
  "sec:cvss": {
    "@score": "6.1",
    "@severity": "Medium",
    "@type": "Base",
    "@vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
    "@version": "3.0"
  },
  "sec:identifier": "JVNDB-2026-000060",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN37524771/index.html",
      "@id": "JVN#37524771",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-40451",
      "@id": "CVE-2026-40451",
      "@source": "CVE"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-79",
      "@title": "Cross-site Scripting(CWE-79)"
    }
  ],
  "title": "DeepL Chrome browser extension vulnerable to cross-site scripting"
}

    CVE-2026-40451 (GCVE-0-2026-40451)

    Vulnerability from nvd – Published: 2026-04-22 04:28 – Updated: 2026-04-22 12:38
    VLAI
    Summary
    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.
    Severity
    6.1 (Medium)
    CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    5.1 (Medium)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-79 - Cross-site scripting (XSS)
    Assigner
    References
    Impacted products
    Vendor Product Version
    DeepL Chrome browser extension Affected: from v1.22.0 to v.1.23.0
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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                "timestamp": "2026-04-22T12:37:49.681344Z",
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    CVE-2026-40451 (GCVE-0-2026-40451)

    Vulnerability from cvelistv5 – Published: 2026-04-22 04:28 – Updated: 2026-04-22 12:38
    VLAI
    Summary
    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.
    Severity
    6.1 (Medium)
    CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    5.1 (Medium)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-79 - Cross-site scripting (XSS)
    Assigner
    References
    Impacted products
    Vendor Product Version
    DeepL Chrome browser extension Affected: from v1.22.0 to v.1.23.0
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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