{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-81338 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-81338 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-81338 is a medium-severity cross-site scripting vulnerability in Unknown MasterStudy LMS WordPress Plugin, published on 23 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-81338 and fix it if it is affected.\n\nWhat it is: CVE-2026-81338 is a medium-severity cross-site scripting vulnerability in Unknown MasterStudy LMS WordPress Plugin, published on 23 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-81338 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-2026-81338/ (Markdown: https://insights.sbomify.com/CVE-2026-81338/index.md)","id":"CVE-2026-81338","markdown":"https://insights.sbomify.com/CVE-2026-81338/index.md","name":"CVE-2026-81338","record":{"aliases":["GHSA-xc92-96mw-2hrx"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["security_bypass","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress LMS plugin","requires_auth":"low_privilege","summary":"Subscribers can inject malicious HTML into course discussions, enabling phishing and content spoofing against other users.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"WPScan","cpe":[],"cvss":{"score":4.6,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-345","name":"Insufficient Verification of Data Authenticity"}],"description":"The MasterStudy LMS WordPress Plugin  WordPress plugin before 3.7.50 does not properly sanitise and restrict HTML in user-submitted content before storing it and rendering it to other users, allowing users with subscriber-level accounts and above to perform stored HTML injection, such as embedding iframes, that can be leveraged for phishing and content spoofing against other users viewing the content.","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+ Stored HTML Injection via Course Discussions","id":"CVE-2026-81338","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"MasterStudy LMS \u003c 3.7.50 - Subscriber+ Quiz Attempt Grade Disclosure via IDOR","id":"CVE-2026-81339"},"packages":[],"prev":{"headline":"Baserow before 2.3.1 Unauthenticated Data Disclosure via Discarded Permission Check on Builder Data Sources","id":"CVE-2026-81335"},"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":"Subscribers can inject malicious HTML into course discussions, enabling phishing and content spoofing against other users.","url":"https://insights.sbomify.com/CVE-2026-81338/"}