Security readout for executives and security teams
Plain-English summary
CVE-2015-9402 concerns the Users Ultra WordPress plugin before version 1.5.59. The reported issue is arbitrary file upload through uultra-form-cvs-form-conf, which can be serious because unexpected file upload paths may let attackers place harmful files on a website. The sources do not provide severity scoring or exploitation details.
Executive priority
Prioritize remediation on internet-facing WordPress sites using this plugin. Arbitrary file upload in a web plugin can create site compromise risk, but the available evidence does not prove active exploitation or define exact blast radius.
Technical view
The source bundle identifies an arbitrary file upload flaw in the Users Ultra plugin before 1.5.59, tied to uultra-form-cvs-form-conf. No CVSS, CWE, CPE, authentication requirement, file-type handling, or exploit prerequisite is provided. KEV status is false, so active exploitation is not evidenced by the supplied data.
Likely exposure
Exposure is likely limited to WordPress sites running the Users Ultra plugin earlier than 1.5.59. The bundle does not name affected CPEs or hosting conditions. Publicly reachable WordPress sites using the plugin should be prioritized for version verification.
Exploitation context
The supplied sources describe arbitrary file upload but do not confirm active exploitation, public exploit reliability, required privileges, or post-upload impact. KEV is false. Treat exploitation details as incomplete rather than assumed.
Researcher notes
Key gaps are severity, authentication requirement, upload restrictions, reachable route behavior, and confirmed fixed changes. The version boundary before 1.5.59 is the clearest actionable fact. Validate exposure defensively without relying on exploit assumptions.
Mitigation direction
- Upgrade Users Ultra to version 1.5.59 or later.
- Disable or remove the plugin if it is not required.
- Check vendor release notes and plugin guidance for current remediation details.
- Review upload directories for unexpected files.
- Review web logs for suspicious access to the affected upload path.
Validation and detection
- Inventory WordPress sites using the Users Ultra plugin.
- Confirm installed plugin versions are 1.5.59 or later.
- Check production and staging sites for old plugin copies.
- Review recent file uploads for unexpected executable content.
- Verify monitoring covers suspicious WordPress upload activity.
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.
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-2015-9402 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://wpvulndb.com/vulnerabilities/8243CVE reference · x_refsource_MISC
- https://wordpress.org/plugins/users-ultra/#developersCVE reference · x_refsource_MISC
- https://seclists.org/bugtraq/2015/Nov/93CVE reference · x_refsource_MISC
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.