CVE-2019-20041

Source
https://cve.org/CVERecord?id=CVE-2019-20041
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-20041.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2019-20041
Downstream
Published
2019-12-27T08:15:09.683Z
Modified
2026-03-15T14:34:40.249066Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

wpksesbad_protocol in wp-includes/kses.php in WordPress before 5.3.1 mishandles the HTML5 colon named entity, allowing attackers to bypass input sanitization, as demonstrated by the javascript: substring.

References

Affected packages

Git / github.com/wordpress/wordpress

Affected ranges

Type
GIT
Repo
https://github.com/wordpress/wordpress
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Database specific
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "5.3.1"
        }
    ]
}
Type
GIT
Repo
https://github.com/wordpress/wordpress-develop
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed

Database specific

unresolved_ranges
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "9.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.0"
            }
        ]
    }
]
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-20041.json"