{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-57311 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-57311 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-57311 is a medium-severity vulnerability in JCD Windu CMS, published on 20 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-57311 and fix it if it is affected.\n\nWhat it is: CVE-2026-57311 is a medium-severity vulnerability in JCD Windu CMS, published on 20 Jul 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-2026-57311 in the wild and no public exploit code.\n\nAffected product: JCD Windu CMS. 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-2026-57311/ (Markdown: https://insights.sbomify.com/CVE-2026-57311/index.md)","id":"CVE-2026-57311","markdown":"https://insights.sbomify.com/CVE-2026-57311/index.md","name":"CVE-2026-57311","record":{"aliases":["GHSA-m87v-9vv3-8824"],"analysis":{"component_type":"web_application","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Windu CMS","requires_auth":"low_privilege","summary":"An authenticated attacker can upload arbitrary files, including PHP, to Windu CMS, leading to remote code execution.","user_interaction":"not_required","vuln_class":"file_upload"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"CERT-PL","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L","version":"4.0"},"cwes":[{"id":"CWE-434","name":"Unrestricted Upload of File with Dangerous Type"}],"description":"Windu CMS does not validate types of uploaded files. An authenticated attacker can upload arbitrary files, including PHP. This can lead to Remote Code Execution.\n\nBecause vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 4.1 but may also affect other versions.","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":"Unrestricted Upload of File with Dangerous Type in Windu CMS","id":"CVE-2026-57311","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"file_upload","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"WordPress Everest Forms plugin \u003c= 3.4.8 - Reflected Cross Site Scripting (XSS) vulnerability","id":"CVE-2026-57312"},"packages":[],"prev":{"headline":"Weak password hashing in Windu CMS","id":"CVE-2026-57310"},"products":["Windu CMS"],"published":"2026-07-20","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":"2026-07-29","vendors":["JCD"]},"summary":"An authenticated attacker can upload arbitrary files, including PHP, to Windu CMS, leading to remote code execution.","url":"https://insights.sbomify.com/CVE-2026-57311/"}