ilverStripe 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]).
| Link | Resource |
|---|---|
| https://forum.silverstripe.org/c/releases | Release Notes Vendor Advisory |
| https://www.silverstripe.org/blog/tag/release | Release Notes Vendor Advisory |
| https://www.silverstripe.org/download/security-releases/ | Vendor Advisory |
| https://www.silverstripe.org/download/security-releases/cve-2020-25817 | Broken Link |
| https://forum.silverstripe.org/c/releases | Release Notes Vendor Advisory |
| https://www.silverstripe.org/blog/tag/release | Release Notes Vendor Advisory |
| https://www.silverstripe.org/download/security-releases/ | Vendor Advisory |
| https://www.silverstripe.org/download/security-releases/cve-2020-25817 | Broken Link |
Configuration 1 (hide)
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21 Nov 2024, 05:18
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://forum.silverstripe.org/c/releases - Release Notes, Vendor Advisory | |
| References | () https://www.silverstripe.org/blog/tag/release - Release Notes, Vendor Advisory | |
| References | () https://www.silverstripe.org/download/security-releases/ - Vendor Advisory | |
| References | () https://www.silverstripe.org/download/security-releases/cve-2020-25817 - Broken Link |
Published : 2021-06-08 18:15
Updated : 2024-11-21 05:18
NVD link : CVE-2020-25817
Mitre link : CVE-2020-25817
CVE.ORG link : CVE-2020-25817
JSON object : View
Improper Restriction of XML External Entity Reference