Security readout for executives and security teams
Plain-English summary
Magento 2 sites using Fastly's CDN module before 1.2.26 with a third-party authentication plugin may leak sensitive session information through cached redirect responses. The public record does not provide CVSS, confirmed exploitation, or detailed affected plugin names, so urgency depends on whether this exact integration exists.
Executive priority
Prioritize verification for Magento 2 commerce environments because session information exposure can affect customer trust. Treat as targeted and configuration-dependent unless inventories confirm affected module versions and authentication plugins.
Technical view
CVE-2017-13761 concerns the Fastly CDN module for Magento2 before version 1.2.26. In combination with a third-party authentication plugin, redirect responses could be cached in a way that allows remote authenticated users to obtain sensitive information from authenticated sessions.
Likely exposure
Exposure appears limited to Magento 2 deployments using the Fastly CDN module before 1.2.26 together with a third-party authentication plugin. The source bundle does not identify specific third-party plugins or broader affected products.
Exploitation context
The CVE describes remote authenticated access to sensitive information via cached redirect responses. The record is not in CISA KEV and the provided sources do not claim active exploitation or public exploit use.
Researcher notes
Key gaps are missing CVSS, unspecified third-party authentication plugins, and no detailed technical advisory content in the source bundle. Avoid assuming exploitability outside the described Fastly CDN module and Magento2 authentication-plugin combination.
Mitigation direction
- Identify Magento 2 sites using the Fastly CDN module before 1.2.26.
- Review the Fastly advisory and upgrade beyond vulnerable module versions.
- Inventory third-party authentication plugins used with affected Magento 2 sites.
- Review CDN caching behavior for authentication redirect responses.
- Purge relevant cached objects after remediation, following vendor guidance.
Validation and detection
- Confirm installed Fastly CDN module versions on all Magento 2 environments.
- Check whether third-party authentication plugins are active on those sites.
- Review CDN logs for cached authentication redirect responses.
- Verify vendor guidance has been applied in staging before production.
- Document whether the exact vulnerable integration exists.
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-2017-13761 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.fastly.com/security-advisories/vulnerability-fastly-open-source-cdn-module-intended-be-integrated-magento2CVE 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.