Security readout for executives and security teams
CVE-2009-4421 affects Simple PHP Blog 0.5.1 and earlier. An authenticated remote user could abuse language selection handling to make the application include and execute local files. This matters most for old, still-reachable blog deployments with user accounts or reused credentials. Exposure is likely limited to legacy Simple PHP Blog 0.5.1 or earlier installations where languages_cgi.php is reachable and an attacker can authenticate. The source bundle does not identify affected CPEs or deployment prevalence. Prioritize remediation for any internet-facing legacy deployment. The weakness can expose or execute local files after authentication, but current evidence does not prove active exploitation. Treat as urgent where the product is still in production. Mitigation focus: Inventory for Simple PHP Blog 0.5.1 and earlier installations.; Check vendor or project guidance for a fixed release or official mitigation.; Retire or replace unsupported Simple PHP Blog deployments where feasible..
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.
File access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2009-4421 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
- spb-bloblanguage1-file-include(54970)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.
