Silverstripe CMS sites through 4.4.4 which have opted into HTTP Cache Headers on…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
Silverstripe CMS sites through 4.4.4 which have opted into HTTP Cache Headers on responses served by the framework's HTTP layer can be vulnerable to web cache poisoning. Through modifying the X-Original-Url and X-HTTP-Method-Override headers, responses with malicious HTTP headers can return unexpected responses to other consumers of this cached response. Most other headers associated with web cache poisoning are already disabled through request hostname forgery whitelists.
Why it matters now
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/framework (Packagist) | 4.0.0 to before 4.4.7 | 4.4.7 | Patch available | GHSA-q9ff-3q93-fm8m |
| — | silverstripe/framework (Packagist) | 4.5.0 to before 4.5.4 | 4.5.4 | Patch available | GHSA-q9ff-3q93-fm8m |
| — | silverstripe/framework (Packagist) | 3.0.0 to before 3.7.5 | 3.7.5 | Patch available | GHSA-q9ff-3q93-fm8m |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- silverstripe/framework (Packagist) Vendor— Affected 4.0.0 to before 4.4.7 Fixed in 4.4.7 Patch available GHSA-q9ff-3q93-fm8m
- silverstripe/framework (Packagist) Vendor— Affected 4.5.0 to before 4.5.4 Fixed in 4.5.4 Patch available GHSA-q9ff-3q93-fm8m
- silverstripe/framework (Packagist) Vendor— Affected 3.0.0 to before 3.7.5 Fixed in 3.7.5 Patch available GHSA-q9ff-3q93-fm8m
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:silverstripe:silverstripe:*:*:*:*:*:*:*:* | 3.0.0 to before 3.7.5; 4.0.0 to before 4.4.7; 4.5.0 to before 4.5.4 | Vulnerable | silverstripe |
- cpe:2.3:a:silverstripe:silverstripe:*:*:*:*:*:*:*:* Versions 3.0.0 to before 3.7.5; 4.0.0 to before 4.4.7; 4.5.0 to before 4.5.4 Vulnerable ·silverstripe
Remediation
- Fix · GHSA-q9ff-3q93-fm8m silverstripe/framework (Packagist) Fixed in 4.4.7 Advisory →
- Fix · GHSA-q9ff-3q93-fm8m silverstripe/framework (Packagist) Fixed in 4.5.4 Advisory →
- Fix · GHSA-q9ff-3q93-fm8m silverstripe/framework (Packagist) Fixed in 3.7.5 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2019-19326
- 2026-10-03 Alias added: GHSA-q9ff-3q93-fm8m
References
Advisory 2
Other 5
- https://github.com/silverstripe/silverstripe-framework/commit/107706c12cd9cf4d1b8b96b6a6e223633209d851
- https://github.com/silverstripe/silverstripe-framework/commit/8518987cbd1eaca71b65dd4a4b35591db941509a
- https://github.com/silverstripe/silverstripe-framework/commit/98926e4e6c26d1d43bb1faf516d15bdb2739556e
- https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/framework/CVE-2019-19326.yaml
- https://github.com/silverstripe/silverstripe-framework
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-2019-19326 · CVE Program
- CVE-2019-19326 · NVD
- FIRST EPSS
- GHSA-q9ff-3q93-fm8m · GitHub Advisory Database · CC BY 4.0
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