‹ Back to list

CVE-2011-2783

Status: ModifiedMedium (6.8)—
Severity6.8Medium · CVSS 2.0
Exploitation probability1.04 %higher than 64% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

Google Chrome before 13.0.782.107 does not ensure that developer-mode NPAPI extension installations are confirmed by a browser dialog, which makes it easier for remote attackers to modify the product's functionality via a Trojan horse extension.

CVSS

Base score
6.8
Version
2.0
Vector
AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
1.04 %
Percentile among all scored CVEs
64
Score date
10/22/2026

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

References

Show 10 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2011-2783",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "affected": [
    {
      "source": "chrome-cve-admin@google.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2011-08-03T00:55:01.737",
  "references": [
    {
      "url": "http://code.google.com/p/chromium/issues/detail?id=83273",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://googlechromereleases.blogspot.com/2011/08/stable-channel-update.html",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://osvdb.org/74233",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/68945",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14406",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://code.google.com/p/chromium/issues/detail?id=83273",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://googlechromereleases.blogspot.com/2011/08/stable-channel-update.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://osvdb.org/74233",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/68945",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14406",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Google Chrome before 13.0.782.107 does not ensure that developer-mode NPAPI extension installations are confirmed by a browser dialog, which makes it easier for remote attackers to modify the product's functionality via a Trojan horse extension."
    },
    {
      "lang": "es",
      "value": "Google Chrome anterior a v13.0.782.107 no asegura que en modo desarrolador, las instalaciones de extensión NPAPI han sido confirmadas por un cuadro de diálogo del navegador, lo que hace que sea más fácil para los atacantes remotos modificar la funcionalidad del producto a través de una extensión con un troyano."
    }
  ],
  "lastModified": "2026-06-16T23:31:59.523",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B0449DAC-673D-4A39-8DD6-F533629AF1A4",
              "versionEndExcluding": "13.0.782.107"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "chrome-cve-admin@google.com"
}