CVE-2026-9615

MEDIUM
Published Sep 19, 2026 Modified Sep 21, 2026 CWE-862

Description

The Flex Import plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 3.0. This is due to the license_activate_fleximp() and license_deactivate_fleximp() functions, hooked to the wp_ajax_license_activate_fleximp and wp_ajax_license_deactivate_fleximp AJAX actions, lacking both a capability check (current_user_can()) and nonce verification (the client-side script sends a 'wpnonce' value but the handlers never validate it). This makes it possible for authenticated attackers, with subscriber-level access and above, to activate an arbitrary/fraudulent license key (persisting it via update_option('fleximp_is_premium') and toggling validation, suspension, and bundle status options) or deactivate the site's legitimate license (deleting the stored key and setting fleximp_validation_status to false), thereby disrupting the plugin's premium functionality.

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CVSS v3.1 Score

4.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS — Exploit Prediction

0.0043
Probability of exploitation
0.36%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-862 Missing Authorization

References

Other References

https://plugins.trac.wordpress.org/browser/flex-import/tags/2.5/includes/fleximp-license-functions.php#L159 https://plugins.trac.wordpress.org/browser/flex-import/tags/2.5/includes/fleximp-license-functions.php#L161 https://plugins.trac.wordpress.org/browser/flex-import/tags/2.5/includes/fleximp-license-functions.php#L86 https://plugins.trac.wordpress.org/browser/flex-import/tags/2.5/includes/fleximp-license-functions.php#L93 https://plugins.trac.wordpress.org/browser/flex-import/tags/2.8/includes/fleximp-license-functions.php#L159 https://plugins.trac.wordpress.org/browser/flex-import/tags/2.8/includes/fleximp-license-functions.php#L161 https://plugins.trac.wordpress.org/browser/flex-import/tags/2.8/includes/fleximp-license-functions.php#L86 https://plugins.trac.wordpress.org/browser/flex-import/tags/2.8/includes/fleximp-license-functions.php#L93 https://plugins.trac.wordpress.org/changeset?reponame=&old=3630901%40flex-import&new=3630901%40flex-import https://www.wordfence.com/threat-intel/vulnerabilities/id/0143b789-06ea-47da-9736-3266f91a9e33?source=cve

Frequently Asked Questions

What is CVE-2026-9615? +
The Flex Import plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 3.0. This is due to the license_activate_fleximp() and license_deactivate_fleximp() functions, hooked to the wp_ajax_license_activate_fleximp and wp_ajax_license_deactivate_fleximp AJAX actions, lacking both a capability check (current_user_can()) and nonce verification (the client-side script sends a 'wpnonce' value but the handlers never validate it). This makes it possible for authenticated attackers, with subscriber-level access and above, to activate an arbitrary/fraudulent license key (persisting it via update_option('fleximp_is_premium') and toggling validation, suspension, and bundle status options) or deactivate the site's legitimate license (deleting the stored key and setting fleximp_validation_status to false), thereby disrupting the plugin's premium functionality. It has a CVSS v3.1 base score of 4.3 (MEDIUM).
How severe is CVE-2026-9615? +
CVE-2026-9615 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0043, placing it in the 0th percentile for exploitation probability.
How do I check if I'm vulnerable to CVE-2026-9615? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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