CVE-2026-11355: Auth Bypass (CVSS 5.3)

Description

The DT LMS – elearning, WordPress LMS plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on multiple AJAX handlers (including dtlms_save_poc_settings, dtlms_save_skin_settings, and dtlms_save_options_settings) in versions up to, and including, 1.1. These handlers are registered on the wp_ajax_nopriv_* hook and contain no capability check, no nonce verification, and pass user-supplied data directly to update_option(). This makes it possible for unauthenticated attackers to overwrite arbitrary plugin option values stored in the wp_options table, including Point-of-Contact email configuration and skin/branding settings, which can be used to alter the appearance and behavior of the LMS for all site visitors.

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CVSS v3.1 Score

5.3

MEDIUM

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

EPSS — Exploit Prediction

0.0025

Probability of exploitation

0.16%

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/dt-lms-lite/trunk/settings/settings-poc-utils.php#L102 https://plugins.trac.wordpress.org/browser/dt-lms-lite/trunk/settings/settings-poc-utils.php#L97 https://plugins.trac.wordpress.org/browser/dt-lms-lite/trunk/settings/settings-utils.php#L15 https://plugins.trac.wordpress.org/browser/dt-lms-lite/trunk/settings/settings-utils.php#L53 https://plugins.trac.wordpress.org/browser/dt-lms-lite/trunk/settings/settings-utils.php#L59 https://plugins.trac.wordpress.org/changeset?reponame=&old=3585901%40dt-lms-lite&new=3585901%40dt-lms-lite https://www.wordfence.com/threat-intel/vulnerabilities/id/fe5bd645-0707-43ce-9316-d52f60035754?source=cve

Frequently Asked Questions

What is CVE-2026-11355? +

The DT LMS – elearning, WordPress LMS plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on multiple AJAX handlers (including dtlms_save_poc_settings, dtlms_save_skin_settings, and dtlms_save_options_settings) in versions up to, and including, 1.1. These handlers are registered on the wp_ajax_nopriv_* hook and contain no capability check, no nonce verification, and pass user-supplied data directly to update_option(). This makes it possible for unauthenticated attackers to overwrite arbitrary plugin option values stored in the wp_options table, including Point-of-Contact email configuration and skin/branding settings, which can be used to alter the appearance and behavior of the LMS for all site visitors. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2026-11355? +

CVE-2026-11355 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0025, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-11355? +

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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