Auth bypass in Thimpress Learnpress
CVE-2026-113353
LearnPress before 4.4.10 contains a missing authorization vulnerability in the admin_course_editor, admin_quiz_editor and admin_question_editor lp-ajax actions, allowing instructors to modify other instructors' content. Authenticated instructors can reuse their own generic editor nonce with another object's id parameter to alter courses, change quiz answers, and trash questions.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/LearnPress/learnpress/commit/77087dcdc0e974e8d0844453b4071189fc2c70d2 (patch)
- plugins.svn.wordpress.org/learnpress/tags/4.4.9.1/inc/admin/editor/class-lp-adm… (technical-description)
- plugins.svn.wordpress.org/learnpress/tags/4.4.9.1/inc/admin/class-lp-admin-ajax… (technical-description)
- learnpresslms.com/changelog/ (release-notes)
- wordpress.org/plugins/learnpress/ (product)
- www.vulncheck.com/advisories/learnpress-before-4.4.10-missing-authorization-via… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-113353?
- CVE-2026-113353 is a medium-severity vulnerability in Thimpress Learnpress, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.4/10. Published 2026-10-20.
- How severe is CVE-2026-113353?
- Medium severity. CVSS v3 base score is 5.4 out of 10.