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CVE-2020-25817

CVE-2020-25817

This page contains facts from public vulnerability sources. Check the original advisory before updating.

SilverStripe through 4.6.0-rc1 has an XXE Vulnerability in CSSContentParser. A developer utility meant for parsing HTML within unit tests can be vulnerable to XML External Entity (XXE) attacks. When this developer utility is misused for purposes involving external or user submitted data in custom project code, it can lead to vulnerabilities such as XSS on HTML output rendered through this custom code. This is now mitigated by disabling external entities during parsing. (The correct CVE ID year is 2020 [CVE-2020-25817, not CVE-2021-25817]).

CVSS 4.8 · Medium · EPSS 0.8% · Fix available

Published
Updated

Stack: php

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • silverstripe/framework Packagist

    Versions
    • 4.0.0
    • 4.0.1
    • 4.0.1-rc1
    • 4.0.2
    • 4.0.3
    • 4.0.4
    • 4.0.5
    • 4.0.6
    • 4.0.7
    • 4.1.0
    • 4.1.0-rc1
    • 4.1.0-rc2
    • 4.1.1
    • 4.1.2
    • 4.1.3
    • 4.1.4
    • 4.1.5
    • 4.2.0
    • 4.2.0-beta1
    • 4.2.1
    • 4.2.2
    • 4.2.3
    • 4.2.4
    • 4.2.5
    • 4.3.0
    • 4.3.0-rc1
    • 4.3.1
    • 4.3.2
    • 4.3.3
    • 4.3.4
    • 4.3.5
    • 4.4.0
    • 4.4.0-rc1
    • 4.4.1
    • 4.4.2
    • 4.4.3
    • 4.4.4
    • 4.4.5
    • 4.4.6
    • 4.4.7
    • 4.5.0
    • 4.5.0-alpha1
    • 4.5.0-rc1
    • 4.5.0-rc2
    • 4.5.1
    • 4.5.2
    • 4.5.3
    • 4.5.4
    • 4.6.0
    • 4.6.0-beta1
    • 4.6.0-rc1
    • 4.6.1
    • 4.6.2
    • 4.7.0
    • 4.7.0-beta1
    • 4.7.0-rc1
    • 4.7.1
    • 4.7.2
    • 4.7.3
    Affected ranges
    • ECOSYSTEM: ≥ 4.0.0, < 4.7.4

    Update to 4.7.4

Original sources

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