{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-16618 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-16618 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-16618 is a critical vulnerability in Unknown Improve SEO, published on 4 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-16618 and fix it if it is affected.\n\nWhat it is: CVE-2026-16618 is a critical vulnerability in Unknown Improve SEO, published on 4 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-16618 in the wild and no public exploit code.\n\nAffected product: Unknown Improve SEO. 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-2026-16618/ (Markdown: https://insights.sbomify.com/CVE-2026-16618/index.md)","id":"CVE-2026-16618","markdown":"https://insights.sbomify.com/CVE-2026-16618/index.md","name":"CVE-2026-16618","record":{"aliases":["GHSA-62v2-7mcm-qpm4"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress plugin","requires_auth":"none","summary":"Unauthenticated attackers can upload malicious PHP files to achieve remote code execution on sites using the Improve SEO plugin.","user_interaction":"not_required","vuln_class":"file_upload"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"WPScan","cpe":[],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-434","name":"Unrestricted Upload of File with Dangerous Type"}],"description":"The Improve SEO WordPress plugin through 2.0.11 does not properly validate uploaded files, checking only the file content type while writing the file with the attacker-supplied extension into a publicly accessible directory, allowing unauthenticated users to upload executable PHP files and achieve remote code execution.","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":"ImproveSEO \u003c= 2.0.11 - Unauthenticated Arbitrary File Upload Leading to Remote Code Execution","id":"CVE-2026-16618","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":"miniOrange 2FA \u003c 6.2.8 - 2FA Bypass via Unlimited Second-Factor Attempts","id":"CVE-2026-16619"},"packages":[],"prev":{"headline":"Simple File List \u003c= 6.3.11 - Unauthenticated Stored XSS via File Description","id":"CVE-2026-16617"},"products":["Improve SEO"],"published":"2026-08-04","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":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-08-04","vendors":["Unknown"]},"summary":"Unauthenticated attackers can upload malicious PHP files to achieve remote code execution on sites using the Improve SEO plugin.","url":"https://insights.sbomify.com/CVE-2026-16618/"}