CVE-2020-6506

Status: ModifiedMedium (6.5)—
Insufficient policy enforcement in WebView in Google Chrome on Android prior to 83.0.4103.106 allowed a remote attacker to bypass site isolation via a crafted HTML page.
CVSS

Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Base score: 6.5
Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 3.72%
Percentile among all scored CVEs: 90
Score date: 10/17/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (1)

Google — Chrome
CWEs

NVD-CWE-noinfo
References

Raw JSON (NVD)

Show
{
  "id": "CVE-2020-6506",
  "cveTags": [],
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        "obtainAllPrivilege": false,
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
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          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
        "exploitabilityScore": 2.8
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  "affected": [
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      "affectedData": [
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          "product": "Chrome",
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  "published": "2020-07-22T17:15:13.010",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
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          "value": "NVD-CWE-noinfo"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Insufficient policy enforcement in WebView in Google Chrome on Android prior to 83.0.4103.106 allowed a remote attacker to bypass site isolation via a crafted HTML page."
    },
    {
      "lang": "es",
      "value": "Una aplicación insuficiente de políticas en WebView en Google Chrome en Android versiones anteriores a 83.0.4103.106, permitió a un atacante remoto omitir un aislamiento del sitio por medio de una página HTML diseñada"
    }
  ],
  "lastModified": "2026-06-17T03:23:29.317",
  "configurations": [
    {
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  "sourceIdentifier": "chrome-cve-admin@google.com"
}