CVE-2026-14231: LifterLMS WordPress plugin information disclosure in select2_query_posts

CVE-2026-14231 · Severity: info · CVSS 4.3 · Published 2026-07-30

LifterLMS, a popular learning management system plugin for WordPress, contains a security flaw that allows any registered user (such as a student or subscriber) to view sensitive internal information. Specifically, an attacker can access the titles of private records, including active coupon codes and voucher details, which are normally restricted to administrators. This could lead to unauthorized discounts being used or the exposure of internal business data, potentially impacting revenue and operational privacy.

Technologies: LifterLMS. Vendors: LifterLMS.

Quick answers

Is CVE-2026-14231 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-14231 being exploited in the wild.
How severe is CVE-2026-14231?
Informational severity, with a CVSS score of 4.3, published 30 July 2026.
Which products and versions are affected?
LifterLMS < 10.0.10.
Is there a fix for CVE-2026-14231?
A patch was published on 2026-07-10: Fixed in version 10.0.10 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-14231 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-14231?
Check whether you run LifterLMS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability exists in the `select2_query_posts` AJAX handler within the LifterLMS plugin. The handler only verifies that a user is logged in and provides a valid AJAX nonce (which is available to all logged-in users on the front-end) but fails to implement a `current_user_can()` capability check. By sending a crafted POST request to `admin-ajax.php` with a specific `post_type` parameter (e.g., `llms_coupon`, `llms_voucher`, or `llms_order`), an authenticated attacker with Subscriber-level privileges can retrieve the titles of these internal post types. This results in the disclosure of sensitive strings like discount codes. The issue is fixed in version 10.0.10.

Affected products

  • LifterLMS LifterLMS < 10.0.10

Timeline

  • 2026-07-10: disclosed: Publicly published by WPScan
  • 2026-07-10: patched: Fixed in version 10.0.10
  • 2026-07-30: advisory: NVD publication date

References

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