In SilverStripe through 4.5, malicious users with a valid Silverstripe CMS login (usually…
Priority LOW 25CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
In SilverStripe through 4.5, malicious users with a valid Silverstripe CMS login (usually CMS access) can craft profile information which can lead to XSS for other users through specially crafted login form URLs.
Why it matters now
EPSS 0.00556 46th percentileScored 2026-11-07
Fix Fixed silverstripe/framework (Packagist): 3.7.5
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | silverstripe/cms (Packagist) | up to 4.5.0 | — | No fix listed | GHSA-2pw2-qpcp-m47x |
| — | silverstripe/framework (Packagist) | 3.0.0 to before 3.7.5 | 3.7.5 | Patch available | GHSA-2pw2-qpcp-m47x |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- silverstripe/cms (Packagist) Vendor— Affected up to 4.5.0 Fixed in — No fix listed GHSA-2pw2-qpcp-m47x
- silverstripe/framework (Packagist) Vendor— Affected 3.0.0 to before 3.7.5 Fixed in 3.7.5 Patch available GHSA-2pw2-qpcp-m47x
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:silverstripe:silverstripe:*:*:*:*:*:*:*:* | 3.0.0 to before 3.7.5 | Vulnerable | silverstripe |
- cpe:2.3:a:silverstripe:silverstripe:*:*:*:*:*:*:*:* Versions 3.0.0 to before 3.7.5 Vulnerable ·silverstripe
Remediation
- Fix · GHSA-2pw2-qpcp-m47x silverstripe/framework (Packagist) Fixed in 3.7.5 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-9311
- 2026-10-03 Alias added: GHSA-2pw2-qpcp-m47x
References
Advisory 2
More Silverstripe vulnerabilities
- TI-2007-02239 Unspecified vulnerability in the search functionality in SilverStripe 2.0.0 has unknown impact and attack vectors. CVSS 2.0HIGH 10.0
- TI-2019-09110 In SilverStripe through 4.3.3, a missing warning about leaving install.php in a public… CVSS 3.1CRITICAL 9.8
- TI-2019-04049 All versions of SilverStripe 3 prior to 3.6.7 and 3.7.3, and all versions of SilverStripe… CVSS 3.0CRITICAL 9.8
- TI-2019-09281 In SilverStripe through 4.3.3, the previous fix for SS-2018-007 does not completely… CVSS 3.1HIGH 8.8
- TI-2011-04272 code/sitefeatures/PageCommentInterface.php in SilverStripe 2.4.x before 2.4.6 might allow… CVSS 2.0MEDIUM 6.8
- TI-2020-07421 In SilverStripe through 4.5, files uploaded via Forms to folders migrated from… CVSS 3.1HIGH 7.5
Sources
- CVE-2020-9311 · CVE Program
- CVE-2020-9311 · NVD
- FIRST EPSS
- GHSA-2pw2-qpcp-m47x · GitHub Advisory Database · CC BY 4.0
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