{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-27064 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-27064 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-27064 is a critical vulnerability in EverPress Mailster, published on 23 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-27064 and fix it if it is affected.\n\nWhat it is: CVE-2026-27064 is a critical vulnerability in EverPress Mailster, published on 23 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-27064 in the wild and no public exploit code.\n\nAffected product: EverPress Mailster. 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-2026-27064/ (Markdown: https://insights.sbomify.com/CVE-2026-27064/index.md)","id":"CVE-2026-27064","markdown":"https://insights.sbomify.com/CVE-2026-27064/index.md","name":"CVE-2026-27064","record":{"aliases":["GHSA-qwf2-rfq8-mpjg"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress plugin","requires_auth":"high_privilege","summary":"An attacker with editor privileges can upload arbitrary files to the Mailster WordPress plugin, potentially leading to remote code execution.","user_interaction":"not_required","vuln_class":"file_upload"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Patchstack","cpe":[],"cvss":{"score":9.1,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-434","name":"Unrestricted Upload of File with Dangerous Type"}],"description":"Editor Arbitrary File Upload in Mailster \u003c= 4.1.17 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":"WordPress Mailster plugin \u003c= 4.1.17 - Arbitrary File Upload vulnerability","id":"CVE-2026-27064","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"file_upload","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"WordPress BuilderPress plugin \u003c= 2.0.1 - Local File Inclusion vulnerability","id":"CVE-2026-27065"},"packages":[],"prev":{"headline":"WordPress Kit (formerly ConvertKit) plugin \u003c= 3.4.7 - Broken Access Control vulnerability","id":"CVE-2026-27063"},"products":["Mailster"],"published":"2026-07-23","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":"total"},"state":"PUBLISHED","updated":"2026-07-23","vendors":["EverPress"]},"summary":"An attacker with editor privileges can upload arbitrary files to the Mailster WordPress plugin, potentially leading to remote code execution.","url":"https://insights.sbomify.com/CVE-2026-27064/"}