# CVE-2026-116410: Masteriyo LMS arbitrary content deletion

Source: https://junglewise.ai/threats/cve-2026-116410-unauthenticated-arbitrary-content-deletion-in-masteriyo-lms-3-4  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-30. Updated: 2026-10-30  
License: CC BY 4.0 with a link back

CVE-2026-116410 · Severity: medium · CVSS 6.5 · Published 2026-10-30

Masteriyo LMS is a WordPress learning management system plugin used to host and manage online courses and educational content. A vulnerability in versions 3.4.3 and earlier allows unauthenticated attackers to delete any posts, pages, or course content on affected sites without permission. This could lead to loss of educational materials, site defacement, or disruption of course delivery.

Technologies: [ThemeGrill Masteriyo - LMS](https://junglewise.ai/threats/technologies/masteriyo-lms). Vendors: [ThemeGrill](https://junglewise.ai/threats/vendors/themegrill).

## Quick answers

**Is CVE-2026-116410 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-116410 being exploited in the wild.

**How severe is CVE-2026-116410?** Medium severity, with a CVSS score of 6.5, published 30 October 2026.

**Which products and versions are affected?** ThemeGrill Masteriyo - LMS 3.4.3 and earlier.

**Is there a fix for CVE-2026-116410?** Yes: fixed in 3.5.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-116410 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-116410?** Check whether you run ThemeGrill Masteriyo - LMS 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.

## How to fix

- Fixed in 3.5.0

## Technical details

This arbitrary content deletion vulnerability requires no authentication to exploit, allowing any unauthenticated attacker to delete posts, pages, and other content via the Masteriyo LMS plugin. The vulnerability is classified as a broken access control issue (OWASP A1), indicating that the plugin fails to properly verify permissions before allowing delete operations. A fix is available in version 3.5.0 and later.

## Affected products

- ThemeGrill Masteriyo LMS 3.4.3 and earlier

## Timeline

- 2026-10-30: disclosed

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://patchstack.com/database/wordpress/plugin/learning-management-system/vulnerability/wordpress-masteriyo-lms-plugin-3-4-3-arbitrary-content-deletion-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/learning-management-system/vulnerability/wordpress-masteriyo-lms-plugin-3-4-3-arbitrary-content-deletion-vulnerability?_s_id=cve)

## Related threats

- [Masteriyo LMS broken access control in subscriber pages](https://junglewise.ai/threats/cve-2026-62132-masteriyo-lms-broken-access-control-in-subscriber-pages)
- [Masteriyo LMS PHP object injection vulnerability](https://junglewise.ai/threats/cve-2026-62107-masteriyo-lms-php-object-injection-vulnerability)
- [ThemeGrill Masteriyo LMS IDOR in versions up to 2.3.1](https://junglewise.ai/threats/cve-2026-65463-themegrill-masteriyo-lms-idor-in-versions-up-to-2-3-1)
- [ThemeGrill Masteriyo LMS broken authentication](https://junglewise.ai/threats/cve-2026-42743-themegrill-masteriyo-lms-broken-authentication)
- [ThemeGrill Masteriyo LMS broken access control payment bypass](https://junglewise.ai/threats/cve-2026-39524-themegrill-masteriyo-lms-broken-access-control-payment-bypass)