CVE-2024-4345: Startklar Elementor Addons <= 1.7.13 - Unauthenticated Arbitrary File Upload

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-05-07 · updated 2026-06-17
Weakness: CWE-434

Description

The Startklar Elementor Addons plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in the 'process' function in the 'startklarDropZoneUploadProcess' class in versions up to, and including, 1.7.13. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

Affected products

wshberlin Startklar Elementor Addons: through 1.7.13

References

https://plugins.trac.wordpress.org/browser/startklar-elmentor-forms-extwidgets/trunk/startklarDropZoneUploadProcess.php?rev=3061298#L7
https://plugins.trac.wordpress.org/changeset/3081987/startklar-elmentor-forms-extwidgets
https://www.wordfence.com/threat-intel/vulnerabilities/id/4221b33c-5cfa-48db-92bf-bf25ff3c5a5f?source=cve
https://plugins.trac.wordpress.org/browser/startklar-elmentor-forms-extwidgets/trunk/startklarDropZoneUploadProcess.php?rev=3061298#L7
https://plugins.trac.wordpress.org/changeset/3081987/startklar-elmentor-forms-extwidgets
https://www.wordfence.com/threat-intel/vulnerabilities/id/4221b33c-5cfa-48db-92bf-bf25ff3c5a5f?source=cve

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