Authorization bypass in ThimPress LearnPress – WordPress LMS Plugin for Create and Sell…
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
The LearnPress – WordPress LMS Plugin for Create and Sell Online Courses plugin for WordPress is vulnerable to payment bypass through user-controlled key in all versions up to, and including, 4.3.5. This is due to improper handling of user-supplied request parameters in the REST API endpoint, which passes the unsanitized parameter array to the add_to_cart() function where array_merge() allows attacker-controlled values to overwrite hardcoded defaults. This makes it possible for authenticated attackers, with subscriber-level access and above, to enroll in any paid course entirely free of charge by supplying a quantity value of zero, which causes the order total to calculate as $0 and bypasses all payment gateway requirements.
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
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-7648
- 2026-10-03 Alias added: GHSA-gc4c-8j88-m8pm
References
Other 8
- https://www.wordfence.com/threat-intel/vulnerabilities/id/564ec4a6-20d3-4b46-8637-fc1de586e19a?source=cve
- https://plugins.trac.wordpress.org/browser/learnpress/trunk/inc/cart/class-lp-cart.php#L105
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.3/inc/cart/class-lp-cart.php#L105
- https://plugins.trac.wordpress.org/browser/learnpress/trunk/inc/rest-api/v1/frontend/class-lp-rest-courses-controller.php#L474
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.3/inc/rest-api/v1/frontend/class-lp-rest-courses-controller.php#L474
- https://plugins.trac.wordpress.org/browser/learnpress/trunk/inc/cart/class-lp-cart.php#L180
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.3/inc/cart/class-lp-cart.php#L180
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3521636%40learnpress&new=3521636%40learnpress&sfp_email=&sfph_mail=
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-2026-7648 · CVE Program
- CVE-2026-7648 · NVD
- FIRST EPSS
- GHSA-gc4c-8j88-m8pm · 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