Security readout for executives and security teams
Plain-English summary
This WordPress plugin flaw lets a trusted shop manager-level user upload files the server should reject. If the uploaded file can execute, the site could be fully compromised, including customer data and site availability. The risk is high but depends on an attacker already having elevated site access.
Executive priority
Treat as a high-priority WordPress plugin remediation where the plugin is installed. The attacker needs privileged access, but successful abuse may lead to full site compromise. Prioritize customer-facing commerce sites and environments with many Shop Manager users.
Technical view
CVE-2023-6558 is CWE-434 in Export and Import Users and Customers for WordPress up to and including 2.4.8. The upload_import_file function lacked sufficient file type validation, allowing authenticated Shop Manager+ users to upload arbitrary files, with possible remote code execution.
Likely exposure
Exposure is limited to WordPress sites running the Export and Import Users and Customers plugin at version 2.4.8 or earlier, especially WooCommerce sites with Shop Manager accounts. Internet reachability matters, but exploitation still requires authenticated Shop Manager-level capabilities or above.
Exploitation context
The source bundle does not report CISA KEV listing or confirmed active exploitation. The CVSS vector indicates network access, low attack complexity, high privileges required, no user interaction, and high confidentiality, integrity, and availability impact if abused.
Researcher notes
The key sink is upload_import_file in the plugin import AJAX class. The public description attributes the issue to insufficient file type validation. The supplied WordPress changeset appears relevant to remediation, but the bundle does not name a fixed version explicitly.
Mitigation direction
- Identify all WordPress sites using this plugin and record installed versions.
- Upgrade using vendor or WordPress plugin repository guidance for a fixed release.
- Disable or remove the plugin where import/export functionality is not required.
- Review and reduce Shop Manager and administrator accounts to current business need.
- Require strong authentication and MFA for privileged WordPress users where supported.
Validation and detection
- Confirm no site is running version 2.4.8 or earlier.
- Review privileged WordPress accounts for unexpected Shop Manager or administrator access.
- Check web server upload locations for unexpected executable files after plugin use.
- Review WordPress and server logs for suspicious authenticated upload activity.
- Verify remediation against the vendor advisory or WordPress plugin changeset.
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 lookupExecution 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 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-2023-6558 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
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/55b3e2dc-dc4f-408b-bbc6-da72ed5ad245?source=cveCVE reference
- https://plugins.trac.wordpress.org/browser/users-customers-import-export-for-wp-woocommerce/tags/2.4.7/admin/modules/import/classes/class-import-ajax.php#L124CVE reference
- https://plugins.trac.wordpress.org/changeset/3008454/users-customers-import-export-for-wp-woocommerce#file197CVE reference
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.