CVE-2026-6020 Details
Description
The ShopLentor plugin for WordPress is vulnerable to arbitrary function execution via the woolentoropt/v1/custom-action REST API endpoint in all versions up to, and including, 3.3.7. This is due to the handle_action() method passing user-supplied input directly to call_user_func() without an allowlist of permitted callbacks. This makes it possible for authenticated attackers, with Administrator-level access and above, to execute arbitrary PHP callable functions via the 'callback' parameter.
A vulnerability allowing arbitrary function execution has been identified in the ShopLentor plugin for WordPress, in versions through 3.3.7. The issue arises in the woolentoropt/v1/custom-action REST API endpoint, where the handle_action() method improperly passes user-supplied input directly to call_user_func() without a proper allowlist of permitted callbacks. This flaw enables authenticated attackers with Administrator-level access and above to execute arbitrary PHP callable functions by manipulating the 'callback' parameter.
Users are advised to update the ShopLentor plugin to version 3.3.8 or a newer patched version.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Aug 5, 2026CISA-ADP
Assessed Aug 5, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-470 | Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| ShopLentor | <= 3.3.7 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 5, 2026 | CVE Modified | CISA-ADP |
| Aug 5, 2026 | New CVE Received | [email protected] |