Stored cross-site scripting in LearnPress WordPress LMS plugin
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
LearnPress, a WordPress LMS plugin, is affected in all versions up to and including 4.4.10. Insufficient input sanitization and output escaping in the quantity REST parameter and the order_comments checkout parameter allow stored cross-site scripting (CWE-79). With guest checkout enabled, an unauthenticated attacker can inject scripts that run whenever a user accesses the injected page. With guest checkout disabled, a Subscriber-level user can exploit it through their own checkout.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
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. With guest checkout enabled the attack is fully unauthenticated; with guest checkout disabled, any Subscriber-level user can exploit both vectors through their own checkout.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for LearnPress (WordPress LMS Plugin for Create and Sell Online Courses).
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Timeline
- 2026-10-18 Threatist record created from CVE-2026-109208
- 2026-10-18 Alias added: GHSA-xjwq-jfhh-r4m2
References
Other 9
- https://www.wordfence.com/threat-intel/vulnerabilities/id/4ac1ddf0-9164-45a8-b1dc-e684b1b4b447?source=cve
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.10/inc/admin/views/meta-boxes/order/content-tab-preview-exports-invoice.php#L86
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.10/inc/rest-api/v1/frontend/class-lp-rest-courses-controller.php#L671
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.10/inc/cart/class-lp-cart.php#L108
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.10/inc/order/class-lp-order.php#L688
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.10/inc/class-lp-checkout.php#L390
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.10/inc/admin/views/meta-boxes/order/details.php#L218
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.10/assets/src/js/admin/order/refund-order.js#L104
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3750024%40learnpress&new=3750024%40learnpress
More ThimPress vulnerabilities
- TI-2024-07900 LearnPress – WordPress LMS Plugin <= 4.2.7 - Unauthenticated SQL Injection via 'c_only_fields' CVSS 3.1CRITICAL 10.0
- TI-2023-06018 LearnPress <= 4.2.5.7 - Unauthenticated SQL Injection via order_by CVSS 3.1CRITICAL 9.8
- TI-2023-05199 WP Hotel Booking < 2.0.8 - Unauthenticated SQLi CVSS 3.1CRITICAL 9.8
- TI-2024-04124 LearnPress – WordPress LMS Plugin <= 4.2.6.5 - Unauthenticated Time-Based SQL Injection CVSS 3.1CRITICAL 9.8
- TI-2023-18355 WordPress LearnPress plugin <= 4.2.3 - Authenticated Broken Access Control vulnerability CVSS 3.1HIGH 8.8
- TI-2022-03105 LearnPress < 4.1.7.2 - Unauthenticated PHP Object Injection via REST API CVSS 3.1HIGH 8.1
Sources
- CVE-2026-109208 · CVE Program
- CVE-2026-109208 · NVD
- FIRST EPSS
- GHSA-xjwq-jfhh-r4m2 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences