UBUNTU-CVE-2026-0540

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Source
https://ubuntu.com/security/CVE-2026-0540
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0540.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-0540
Upstream
Published
2026-03-03T18:16:00Z
Modified
2026-03-05T19:18:32.175208Z
Severity
  • 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
  • 5.1 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

DOMPurify 3.1.3 through 3.3.1 and 2.5.3 through 2.5.8, fixed in commit 729097f, contain a cross-site scripting vulnerability that allows attackers to bypass attribute sanitization by exploiting five missing rawtext elements (noscript, xmp, noembed, noframes, iframe) in the SAFEFORXML regex. Attackers can include payloads like </noscript><img src=x onerror=alert(1)> in attribute values to execute JavaScript when sanitized output is placed inside these unprotected rawtext contexts.

References

Affected packages

Ubuntu:22.04:LTS / node-dompurify

Package

Name
node-dompurify
Purl
pkg:deb/ubuntu/node-dompurify@2.3.3+dfsg-1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.3.0+dfsg-2
2.3.3+dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.3.3+dfsg-1",
            "binary_name": "node-dompurify"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0540.json"

Ubuntu:24.04:LTS / node-dompurify

Package

Name
node-dompurify
Purl
pkg:deb/ubuntu/node-dompurify@3.0.9+dfsg+~3.0.5-1?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.4.1+dfsg+~2.4.0-1
3.*
3.0.9+dfsg+~3.0.5-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.0.9+dfsg+~3.0.5-1",
            "binary_name": "node-dompurify"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0540.json"

Ubuntu:25.10 / node-dompurify

Package

Name
node-dompurify
Purl
pkg:deb/ubuntu/node-dompurify@3.1.7+dfsg+~3.0.5-2?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.1.7+dfsg+~3.0.5-1
3.1.7+dfsg+~3.0.5-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.1.7+dfsg+~3.0.5-2",
            "binary_name": "node-dompurify"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0540.json"