{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-4278 exists.","fix":"No fix has been published for CVE-2023-4278 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-4278 is a high-severity missing authorization vulnerability in Unknown MasterStudy LMS WordPress Plugin, published on 11 Sep 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-4278 and fix it if it is affected.\n\nWhat it is: CVE-2023-4278 is a high-severity missing authorization vulnerability in Unknown MasterStudy LMS WordPress Plugin, published on 11 Sep 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-4278 exists.\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-2023-4278/ (Markdown: https://insights.sbomify.com/CVE-2023-4278/index.md)","id":"CVE-2023-4278","markdown":"https://insights.sbomify.com/CVE-2023-4278/index.md","name":"CVE-2023-4278","record":{"aliases":["GHSA-522j-v5mv-h6mw"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["privilege_escalation","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress LMS plugin","requires_auth":"none","summary":"Unauthenticated attackers can register as instructors to create courses and posts due to missing registration checks in the MasterStudy LMS plugin.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"WPScan","cpe":[{"product":"masterstudy_lms","vendor":"stylemixthemes"}],"cvss":{"score":7.5,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"cwes":[],"description":"The MasterStudy LMS WordPress Plugin WordPress plugin before 3.0.18 does not have proper checks in place during registration allowing anyone to register on the site as an instructor. They can then add courses and/or posts.","ecosystems":[],"exploits":{"exploitdb":1,"first_seen":"2023-09-04","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2023-09-04T14:16:32Z","kind":"github_poc","ref":"https://github.com/revan-ar/CVE-2023-4278","stars":0,"title":"Wordpress Plugin Masterstudy LMS \u003c= 3.0.17 - Unauthenticated Instructor Account Creation."},{"date":"2023-10-09","kind":"exploitdb","ref":"51735","stars":null,"title":"Wordpress Plugin Masterstudy LMS - 3.0.17 - Unauthenticated Instructor Account Creation"}],"tier":"weaponised"},"has_fix":null,"headline":"MasterStudy LMS \u003c 3.0.18 - Unauthenticated Instructor Account Creation","id":"CVE-2023-4278","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2023"},"n_packages":0,"n_references":2,"next":{"headline":"User Activity Log \u003c 1.6.7 - IP Spoofing","id":"CVE-2023-4279"},"packages":[],"prev":{"headline":"Realia \u003c= 1.4.0 - Cross-Site Request Forgery to User Email Change","id":"CVE-2023-4277"},"products":["MasterStudy LMS WordPress Plugin"],"published":"2023-09-11","related":[{"cvss_score":9.8,"headline":"MasterStudy LMS \u003c= 3.3.3 - Unauthenticated Local File Inclusion via template","id":"CVE-2024-3136","kev_date_added":null,"published":"2024-04-09"},{"cvss_score":9.8,"headline":"MasterStudy LMS \u003c= 3.3.1 - Unauthenticated Privilege Escalation via stm_lms_register AJAX Action","id":"CVE-2024-2409","kev_date_added":null,"published":"2024-03-29"},{"cvss_score":9.8,"headline":"MasterStudy LMS \u003c= 3.3.0 - Unauthenticated Local File Inclusion via modal","id":"CVE-2024-2411","kev_date_added":null,"published":"2024-03-29"},{"cvss_score":9.8,"headline":"MasterStudy LMS WordPress Plugin – for Online Courses and Education \u003c= 3.2.5 - Unauthenticated SQL Injection","id":"CVE-2024-1512","kev_date_added":null,"published":"2024-02-17"},{"cvss_score":9.8,"headline":"MasterStudy LMS \u003c 2.7.6 - Unauthenticated Admin Account Creation","id":"CVE-2022-0441","kev_date_added":null,"published":"2022-03-07"},{"cvss_score":9.1,"headline":"MasterStudy LMS \u003c 3.3.24 - Privilege Escalation to Instructor","id":"CVE-2024-5973","kev_date_added":null,"published":"2024-07-22"},{"cvss_score":8.2,"headline":"WordPress MasterStudy LMS plugin \u003c= 3.2.12 - Broken Access Control vulnerability","id":"CVE-2024-37094","kev_date_added":null,"published":"2024-11-01"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"attribution","licence":"GPL-2.0-or-later","name":"Exploit-DB"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-04-23","vendors":["Unknown"]},"summary":"Unauthenticated attackers can register as instructors to create courses and posts due to missing registration checks in the MasterStudy LMS plugin.","url":"https://insights.sbomify.com/CVE-2023-4278/"}