Security readout for executives and security teams
Plain-English summary
Some Silverstripe CMS sites could let a poisoned cached response be served to other visitors. The issue only applies to sites through version 4.4.4 that opted into framework-level HTTP cache headers. Business impact depends on whether affected responses are cached and shared.
Executive priority
Prioritize if public Silverstripe sites use shared caching or CDN caching. The issue can affect other visitors through cached content, but urgency is lower without evidence of active exploitation or broad default exposure.
Technical view
The CVE describes web cache poisoning in Silverstripe CMS through 4.4.4 when HTTP Cache Headers are enabled on framework HTTP responses. Manipulated request headers can influence cached responses, potentially causing unexpected responses to be served to later consumers of the cache.
Likely exposure
Exposure is conditional: Silverstripe CMS through 4.4.4, HTTP Cache Headers opted in, and a shared cache path serving framework responses. Sites without that cache behavior are not shown as affected by the provided sources.
Exploitation context
The provided bundle does not show KEV listing, active exploitation, public exploit status, CVSS, or CWE data. Treat exploitability evidence as incomplete, not absent.
Researcher notes
Key scoping questions are version, opt-in cache headers, and shared cache behavior. The source specifically names X-Original-Url and X-HTTP-Method-Override as relevant inputs, while noting other poisoning-related headers were already constrained.
Mitigation direction
- Check the Silverstripe advisory for fixed versions and vendor-specific guidance.
- Upgrade affected Silverstripe CMS deployments according to vendor guidance.
- Disable or reduce shared caching for affected framework responses until remediated.
- Review cache rules for unsafe variation on request headers.
Validation and detection
- Inventory Silverstripe CMS versions and flag deployments through 4.4.4.
- Confirm whether framework HTTP Cache Headers are enabled.
- Identify CDN, proxy, or application caches in front of Silverstripe responses.
- Review whether affected dynamic responses can be cached for multiple users.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2019-19326 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.silverstripe.org/download/security-releases/CVE-2019-19326CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.