CVE-2020-25817
CVSS V2 Low 3.5
CVSS V3 Medium 4.8
Description
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]).
Overview
- CVE ID
- CVE-2020-25817
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-06-08T18:15:07
- Last Modified Date
- 2021-06-17T15:47:08
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:silverstripe:silverstripe:*:*:*:*:*:*:*:* | 1 | OR | 4.6.0 | |
| cpe:2.3:a:silverstripe:silverstripe:4.6.0:rc1:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:S/C:N/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- SINGLE
- Confidentiality Impact
- NONE
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 3.5
- Severity
- LOW
- Exploitability Score
- 6.8
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- HIGH
- User Interaction
- REQUIRED
- Scope
- CHANGED
- Confidentiality Impact
- LOW
- Availability Impact
- NONE
- Base Score
- 4.8
- Base Severity
- MEDIUM
- Exploitability Score
- 1.7
- Impact Score
- 2.7
References
| Reference URL | Reference Tags |
|---|---|
| https://www.silverstripe.org/download/security-releases/ | Vendor Advisory |
| https://www.silverstripe.org/blog/tag/release | Release Notes Vendor Advisory |
| https://forum.silverstripe.org/c/releases | Release Notes Vendor Advisory |
| https://www.silverstripe.org/download/security-releases/cve-2020-25817 | Broken Link |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-25817 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25817 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:10:59 | Added to TrackCVE | |||
| 2022-12-05 03:43:52 | 2021-06-08T18:15Z | 2021-06-08T18:15:07 | CVE Published Date | updated |
| 2022-12-05 03:43:52 | 2021-06-17T15:47:08 | CVE Modified Date | updated | |
| 2022-12-05 03:43:52 | Analyzed | Vulnerability Status | updated |