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]).
References
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 |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2021-06-08T17:54:01
Updated: 2021-06-08T19:51:03
Reserved: 2020-09-23T00:00:00
Link: CVE-2020-25817
JSON object: View
NVD Information
Status : Analyzed
Published: 2021-06-08T18:15:07.907
Modified: 2021-06-17T15:47:08.743
Link: CVE-2020-25817
JSON object: View
Redhat Information
No data.
CWE