CVE-2020-4070

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Source

https://cve.org/CVERecord?id=CVE-2020-4070

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-4070.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2020-4070

Aliases

GHSA-wf36-7w73-rh8c

Published

2020-06-22T16:15:11.963Z

Modified

2026-07-09T01:25:34.170473Z

Severity

5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS Calculator

Summary

[none]

Details

In CSS Validator less than or equal to commit 54d68a1, there is a cross-site scripting vulnerability in handling URIs. A user would have to click on a specifically crafted validator link to trigger it. This has been patched in commit e5c09a9.

Database specific

{
    "unresolved_ranges": [
        {
            "source": "CPE_RANGE",
            "cpes": [
                "cpe:2.3:a:w3c:css_validator:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "w3c:css_validator",
            "extracted_events": [
                {
                    "last_affected": "2020-01-19"
                }
            ]
        }
    ]
}

References

Affected packages

Git / github.com/w3c/css-validator

Affected ranges

Type

GIT

Repo

https://github.com/w3c/css-validator

Events

Introduced

Fixed

e5c09a9119167d3064db786d5f00d730b584a53b

Database specific

{
    "source": "REFERENCES"
}

Affected versions

Other

cssval-1-alpha

cssval-201801

cssval-20190320

Database specific

vanir_signatures

[
    {
        "digest": {
            "length": 1498.0,
            "function_hash": "327506727195512130857608281471890945436"
        },
        "signature_version": "v1",
        "source": "https://github.com/w3c/css-validator/commit/e5c09a9119167d3064db786d5f00d730b584a53b",
        "signature_type": "Function",
        "target": {
            "function": "parseURL",
            "file": "org/w3c/css/css/StyleSheetParser.java"
        },
        "id": "CVE-2020-4070-27bf7adc",
        "deprecated": false
    },
    {
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "287126531491259831142828594517899965709",
                "166151882237851564633381564464035597352",
                "217623342706874349683039718344875380745",
                "25486391784260251365600363288280579394"
            ]
        },
        "signature_version": "v1",
        "source": "https://github.com/w3c/css-validator/commit/e5c09a9119167d3064db786d5f00d730b584a53b",
        "signature_type": "Line",
        "target": {
            "file": "org/w3c/css/css/StyleSheetParser.java"
        },
        "id": "CVE-2020-4070-dd4b0a2a",
        "deprecated": false
    }
]

vanir_signatures_modified

"2026-07-09T01:25:34Z"

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-4070.json"