Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, bypass the CSS sanitizer, bypass security restrictions, spoof the URL bar, or execute arbitrary code. (CVE-2020-16042, CVE-2020-26971, CVE-2020-26972, CVE-2020-26793, CVE-2020-26974, CVE-2020-26976, CVE-2020-26978, CVE-2020-26979, CVE-2020-35113, CVE-2020-35114)
It was discovered that the proxy.onRequest API did not catch view-source URLs. If a user were tricked in to installing an extension with the proxy permission and opening View Source, an attacker could potentially exploit this to obtain sensitive information. (CVE-2020-35111)
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    "cves": [
        {
            "id": "CVE-2020-16042",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
                    "type": "CVSS_V3"
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                    "score": "medium",
                    "type": "Ubuntu"
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        {
            "id": "CVE-2020-26971",
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                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
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                    "score": "medium",
                    "type": "Ubuntu"
                }
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        {
            "id": "CVE-2020-26972",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
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        {
            "id": "CVE-2020-26973",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
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        {
            "id": "CVE-2020-26974",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
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                    "score": "medium",
                    "type": "Ubuntu"
                }
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        {
            "id": "CVE-2020-26976",
            "severity": [
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                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
                    "type": "CVSS_V3"
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                    "score": "medium",
                    "type": "Ubuntu"
                }
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        {
            "id": "CVE-2020-26978",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
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        {
            "id": "CVE-2020-26979",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                    "type": "CVSS_V3"
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                    "score": "low",
                    "type": "Ubuntu"
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        {
            "id": "CVE-2020-35111",
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                    "type": "CVSS_V3"
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                    "score": "low",
                    "type": "Ubuntu"
                }
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        {
            "id": "CVE-2020-35113",
            "severity": [
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                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2020-35114",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
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    "ecosystem": "Ubuntu:16.04:LTS"
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            "id": "CVE-2020-16042",
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            "id": "CVE-2020-26971",
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                    "type": "CVSS_V3"
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                    "score": "medium",
                    "type": "Ubuntu"
                }
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        {
            "id": "CVE-2020-26972",
            "severity": [
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                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
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        {
            "id": "CVE-2020-26973",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
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        {
            "id": "CVE-2020-26974",
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                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
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                    "type": "Ubuntu"
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            "id": "CVE-2020-26976",
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                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
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        {
            "id": "CVE-2020-26978",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
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            "id": "CVE-2020-26979",
            "severity": [
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                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                    "type": "CVSS_V3"
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                    "score": "low",
                    "type": "Ubuntu"
                }
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        {
            "id": "CVE-2020-35111",
            "severity": [
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                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
                    "type": "CVSS_V3"
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                    "score": "low",
                    "type": "Ubuntu"
                }
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        {
            "id": "CVE-2020-35113",
            "severity": [
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                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2020-35114",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:18.04:LTS"
}
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            "id": "CVE-2020-26971",
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                    "type": "CVSS_V3"
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                    "score": "medium",
                    "type": "Ubuntu"
                }
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        {
            "id": "CVE-2020-26972",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
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        {
            "id": "CVE-2020-26973",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
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        {
            "id": "CVE-2020-26974",
            "severity": [
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                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
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        {
            "id": "CVE-2020-26976",
            "severity": [
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                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
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        {
            "id": "CVE-2020-26978",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2020-26979",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2020-35111",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
                    "type": "CVSS_V3"
                },
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                    "score": "low",
                    "type": "Ubuntu"
                }
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            "id": "CVE-2020-35113",
            "severity": [
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                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
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        {
            "id": "CVE-2020-35114",
            "severity": [
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                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:20.04:LTS"
}