CVE-2021-47975: WP Learn Manager stored XSS in fieldtitle parameter

CVE-2021-47975 · Severity: high · CVSS 7.2 · Published 2026-05-16

WP Learn Manager, a WordPress plugin used for creating and managing online courses, contains a security flaw that allows unauthorized individuals to inject malicious code into the website. If an administrator views the affected management page, this code can execute in their browser, potentially allowing the attacker to hijack the administrative session or modify site content. This could lead to a full takeover of the learning platform and exposure of student or instructor data.

Vendors: JoomSky.

Quick answers

Is CVE-2021-47975 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2021-47975 being exploited in the wild.
How severe is CVE-2021-47975?
High severity, with a CVSS score of 7.2, published 16 May 2026.
Which products and versions are affected?
JoomSky WP Learn Manager 1.1.2.
Is there a fix for CVE-2021-47975?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2021-47975 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2021-47975?
Check whether you run JoomSky WP Learn Manager 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

A stored cross-site scripting (XSS) vulnerability exists in WP Learn Manager version 1.1.2 due to a lack of input sanitization and missing authorization/CSRF checks in the user field management component. Unauthenticated attackers can send a specially crafted POST request to the 'jslm_fieldordering' page, injecting malicious scripts into the 'fieldtitle' parameter. The payload is stored in the database and executed whenever an administrator accesses the field ordering interface (/wp-admin/admin.php?page=jslm_fieldordering). This can lead to session hijacking, unauthorized administrative actions, or further exploitation of the WordPress environment. As of the advisory date, the plugin appears to be unmaintained.

Affected products

  • JoomSky WP Learn Manager 1.1.2

Timeline

  • 2021-07-02: disclosed: Vulnerability discovered and exploit details documented by Mohammed Adam.
  • 2021-07-05: other: Exploit published on Exploit-DB.
  • 2026-05-16: advisory: CVE published and added to NVD.

References

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