High severity · published Aug 5, 2026
CVE-2026-6020
ShopLentor <= 3.3.7 - Authenticated (Administrator+) Arbitrary Function Execution via 'callback' Parameter via REST API
7.2
CVSS
0.8%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 56% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SA
ShopLentor – All-in-One WooCommerce Growth & Store Enhancement Plugin · devitemsllc
through 3.3.7 · source: vendor
Affected product
SA
ShopLentor – All-in-One WooCommerce Growth & Store Enhancement Plugin
devitemsllc
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-6020
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-6020
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/woolentor-addons/trunk/includes/admin-panel/includes/classes/Api/Custom_Actions.php#L99
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3504292%40woolentor-addons%2Ftrunk&old=3493678%40woolentor-addons%2Ftrunk&sfp_email=&sfph_mail=
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/00138875-d892-460c-b0ce-7a01335d26dc?source=cve
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