CVE-2026-15011: Code Injection (CVSS 9.8)

Description

The Customer Support Ticket System & Helpdesk plugin for WordPress is vulnerable to Code Injection via the 'path' parameter in all versions up to, and including, 6.0.5 due to the use of dynamic function invocation on an attacker-controlled value with insufficient validation. This makes it possible for unauthenticated attackers to invoke arbitrary parameterless PHP functions, which can be used to disrupt site functionality or expose sensitive information. The required nonce is publicly emitted via wp_localize_script whenever the plugin's [emd_form] shortcode is rendered on any public-facing page, making the endpoint reachable by unauthenticated visitors without any prior authentication or privilege.

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CVSS v3.1 Score

9.8

CRITICAL

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

EPSS — Exploit Prediction

0.0049

Probability of exploitation

0.40%

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-94 CWE-94

References

Other References

https://plugins.trac.wordpress.org/browser/wp-ticket/tags/6.0.5/includes/class-install-deactivate.php#L59 https://plugins.trac.wordpress.org/browser/wp-ticket/tags/6.0.5/includes/common-functions.php#L1040 https://plugins.trac.wordpress.org/browser/wp-ticket/tags/6.0.5/includes/common-functions.php#L1043 https://plugins.trac.wordpress.org/browser/wp-ticket/tags/6.0.5/includes/emd-form-builder-lite/emd-form-frontend.php#L1187 https://plugins.trac.wordpress.org/changeset?reponame=&old=3617122%40wp-ticket&new=3617122%40wp-ticket https://www.wordfence.com/threat-intel/vulnerabilities/id/f9e2ad4b-716a-4a2d-87c0-2f351bd13884?source=cve

Frequently Asked Questions

What is CVE-2026-15011? +

The Customer Support Ticket System & Helpdesk plugin for WordPress is vulnerable to Code Injection via the 'path' parameter in all versions up to, and including, 6.0.5 due to the use of dynamic function invocation on an attacker-controlled value with insufficient validation. This makes it possible for unauthenticated attackers to invoke arbitrary parameterless PHP functions, which can be used to disrupt site functionality or expose sensitive information. The required nonce is publicly emitted via wp_localize_script whenever the plugin's [emd_form] shortcode is rendered on any public-facing page, making the endpoint reachable by unauthenticated visitors without any prior authentication or privilege. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-15011? +

CVE-2026-15011 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0049, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-15011? +

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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