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]).
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-06-08T17:54:01

Updated: 2024-08-04T15:40:36.948Z

Reserved: 2020-09-23T00:00:00

Link: CVE-2020-25817

cve-icon Vulnrichment

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cve-icon NVD

Status : Analyzed

Published: 2021-06-08T18:15:07.907

Modified: 2021-06-17T15:47:08.743

Link: CVE-2020-25817

cve-icon Redhat

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