Security readout for executives and security teams
This is an old CSRF issue in the Drupal Shared Sign-On module 5.x and 6.x. A victim already authenticated to the site could be tricked through an unknown request path, potentially letting an attacker hijack that user’s authentication. Public details in the bundle are sparse. Exposure is most likely limited to legacy Drupal deployments that still run the Shared Sign-On module in 5.x or 6.x branches. The bundle does not identify CPEs, package names, hosting patterns, or maintained fixed versions. Use this as a legacy-risk cleanup item unless an affected Drupal site is internet-facing or business-critical. If Shared Sign-On 5.x or 6.x is present, prioritize vendor-guided remediation because the issue concerns authentication hijacking. Mitigation focus: Inventory Drupal sites for Shared Sign-On module usage.; Check Drupal advisory node 592488 for vendor guidance and fixed versions.; Prioritize upgrade, removal, or disabling if unsupported versions remain..
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
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CVE-2009-3656 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
- sharedsignon-unspecified-csrf(53559)CVE reference · vdb-entry, x_refsource_XF
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.