CVE-2026-109208 thimpress CVE debrief

Who should care

Defenders responsible for WordPress installations with the LearnPress plugin, especially those with guest checkout enabled or where Subscriber-level users have access to the checkout process, should assess exposure and prioritize updating the plugin.

Why it matters

CVE-2026-109208 is a Stored Cross-Site Scripting vulnerability in the LearnPress plugin for WordPress, allowing attackers to inject web scripts. Defenders should prioritize updating the plugin, especially for WordPress installations with guest checkout enabled or Subscriber-level user access to checkout.

• Unauthenticated attackers can inject arbitrary web scripts
• Scripts execute when a user accesses an injected page
• Guest checkout enabled allows fully unauthenticated attacks
• Subscriber-level users can exploit with guest checkout disabled

Technical summary

The LearnPress – WordPress LMS Plugin for Create and Sell Online Courses plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'quantity (REST) / order_comments (checkout)' parameter in all versions up to, and including, 4.4.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Defensive priority

Defenders should prioritize verifying and updating the LearnPress plugin to a version beyond 4.4.10, especially for WordPress installations with guest checkout enabled or where Subscriber-level users have access to the checkout process.

Recommended defensive actions

• Verify and update the LearnPress plugin to a version beyond 4.4.10
• Review WordPress installations for guest checkout enabled or Subscriber-level user access to the checkout process
• Monitor for suspicious activity related to the LearnPress plugin
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its CVSS score of 7.2 and the affected parameter. However, specific details about exploitation or affected versions beyond 4.4.10 are not provided in the corpus.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.