Security readout for executives and security teams
Plain-English summary
CVE-2023-27440 affects the WordPress Toolset Types plugin through version 3.4.17. A high-privileged authenticated user may be able to upload a dangerous file type, which can threaten site confidentiality, integrity, and availability. The source bundle does not identify active exploitation or a specific fixed version.
Executive priority
Treat this as high priority for WordPress environments using Toolset Types. The high-privilege requirement lowers immediate mass-exploitation risk, but arbitrary file upload can become serious if an administrator account is compromised or misused.
Technical view
The issue is CWE-434: unrestricted upload of a file with a dangerous type in OnTheGoSystems Types. CVSS 3.1 is 7.2 with network attack vector, low complexity, high privileges required, no user interaction, and high impact across confidentiality, integrity, and availability.
Likely exposure
Exposure is most likely on WordPress sites running the Types or Toolset Types plugin at version 3.4.17 or earlier. The CVSS vector indicates exploitation requires an authenticated high-privilege account, reducing broad internet-scale risk but increasing concern after account compromise.
Exploitation context
The source bundle marks KEV as false and provides no cited evidence of active exploitation. Public references characterize the flaw as authenticated arbitrary file upload, but do not provide enough evidence here to confirm exploit availability, exploitation in the wild, or weaponized details.
Researcher notes
Evidence is limited to the CVE record, CVE JSON, and Patchstack entry. Do not assume unauthenticated reachability, a fixed version, or active exploitation from this bundle. Focus validation on plugin presence, version, privileged-user exposure, and vendor-published remediation.
Mitigation direction
- Inventory WordPress sites for the Types or Toolset Types plugin and record versions.
- Check OnTheGoSystems and Patchstack guidance for a fixed version or vendor mitigation.
- Upgrade, disable, or remove affected plugin instances according to vendor guidance.
- Restrict high-privilege WordPress accounts and review recent administrative access.
- Monitor web roots and upload directories for unexpected executable files.
Validation and detection
- Confirm whether any site runs Types or Toolset Types version 3.4.17 or earlier.
- Review WordPress users with high privileges and verify they still require that access.
- Check security logs for suspicious authenticated plugin activity or unusual file uploads.
- Validate remediation by confirming the plugin is updated, disabled, or removed.
- Document any compensating controls if immediate plugin remediation is not possible.
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.
CWE-434: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupFile 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-2023-27440 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
- High
- CVSS
- 7.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
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 vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H1.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.2HighVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source materials
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.
Unrestricted Upload of File with Dangerous Type
Unrestricted Upload of File with Dangerous Type represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.