{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-81339 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-81339 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-81339 is a medium-severity missing authorization vulnerability in Unknown MasterStudy LMS WordPress Plugin, published on 23 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-81339 and fix it if it is affected.\n\nWhat it is: CVE-2026-81339 is a medium-severity missing authorization vulnerability in Unknown MasterStudy LMS WordPress Plugin, published on 23 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-81339 in the wild and no public exploit code.\n\nAffected product: Unknown MasterStudy LMS WordPress Plugin. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-81339/ (Markdown: https://insights.sbomify.com/CVE-2026-81339/index.md)","id":"CVE-2026-81339","markdown":"https://insights.sbomify.com/CVE-2026-81339/index.md","name":"CVE-2026-81339","record":{"aliases":["GHSA-fj8j-x93w-h29w"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress LMS plugin","requires_auth":"low_privilege","summary":"Authenticated subscribers can read other students' quiz grades and attempt details due to missing ownership checks in MasterStudy LMS.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"WPScan","cpe":[],"cvss":{"score":4.3,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-639","name":"Authorization Bypass Through User-Controlled Key"}],"description":"The MasterStudy LMS WordPress Plugin  WordPress plugin before 3.7.50 does not perform a per-object ownership check when returning a quiz attempt result, allowing any authenticated user with a minimal (subscriber) role to read other students' quiz grades, pass/fail status and attempt timestamps by referencing an attempt identifier belonging to another user.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"MasterStudy LMS \u003c 3.7.50 - Subscriber+ Quiz Attempt Grade Disclosure via IDOR","id":"CVE-2026-81339","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"MasterStudy LMS \u003c 3.7.50 - Instructor+ Order Status Manipulation via IDOR","id":"CVE-2026-81340"},"packages":[],"prev":{"headline":"MasterStudy LMS \u003c 3.7.50 - Subscriber+ Stored HTML Injection via Course Discussions","id":"CVE-2026-81338"},"products":["MasterStudy LMS WordPress Plugin"],"published":"2026-09-23","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-23","vendors":["Unknown"]},"summary":"Authenticated subscribers can read other students' quiz grades and attempt details due to missing ownership checks in MasterStudy LMS.","url":"https://insights.sbomify.com/CVE-2026-81339/"}