Security readout for executives and security teams
This is an old WordPress core issue in the widget Customizer code. Sites running WordPress 3.9.x before 3.9.2 may be exposed to remote code execution through crafted serialized data. The sources identify WordPress 3.9.2 as the fixed release, but provide limited public detail. Exposure is most likely on legacy WordPress installations still running 3.9.x before 3.9.2. Modern or updated WordPress deployments should not be affected by this specific fixed-core issue. Prioritize remediation if any public or business-critical site still runs WordPress 3.9.x before 3.9.2. The issue is old, but potential remote code execution makes unpatched legacy exposure unacceptable. Mitigation focus: Upgrade affected WordPress 3.9.x sites to 3.9.2 or later.; Prefer migrating legacy sites to a currently supported WordPress release.; Review WordPress vendor guidance for any additional hardening advice..
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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Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2014-5203 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://wordpress.org/news/2014/08/wordpress-3-9-2/CVE reference · x_refsource_CONFIRM
- https://core.trac.wordpress.org/changeset/29389CVE 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.