{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-84434 exists.","fix":"No fix has been published for CVE-2026-84434 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-84434 is a critical vulnerability in Gravity Forms, published on 19 Sep 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-2026-84434 and fix it if it is affected.\n\nWhat it is: CVE-2026-84434 is a critical vulnerability in Gravity Forms, published on 19 Sep 2026. 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-2026-84434 exists.\n\nAffected product: Gravity Forms. 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-2026-84434/ (Markdown: https://insights.sbomify.com/CVE-2026-84434/index.md)","id":"CVE-2026-84434","markdown":"https://insights.sbomify.com/CVE-2026-84434/index.md","name":"CVE-2026-84434","record":{"aliases":["GHSA-x9x4-5g6j-pvj3"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"WordPress plugin","requires_auth":"none","summary":"Unauthenticated attackers can upload executable files via hidden fields in Gravity Forms, leading to remote code execution.","user_interaction":"not_required","vuln_class":"file_upload"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Wordfence","cpe":[],"cvss":{"score":9.8,"severity":"critical","source":"cna","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 Gravity Forms plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 3.1.0.4 via the upload_file function. This is due to a mismatch between the field validation pipeline and the file persistence pipeline, where hidden file upload fields bypass extension validation and a rejected file's intact upload state is later passed to upload_file() without re-validation. This makes it possible for unauthenticated attackers to upload files that may be executable, which makes remote code execution possible. Exploitation requires the targeted form to contain a File Upload field with its Visibility set to 'Hidden'; the vulnerability is reachable by unauthenticated attackers on any publicly accessible form meeting this condition.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-09-19","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":1,"refs":[{"date":"2026-09-19T20:27:35Z","kind":"github_poc","ref":"https://github.com/murrez/CVE-2026-84434","stars":0,"title":"PoC for CVE-2026-84434: unauthenticated arbitrary file upload in Gravity Forms ≤3.1.0.4 via hidden File Upload fields. Python check/exploit/mass scan."},{"date":null,"kind":"nuclei","ref":"http/cves/2026/CVE-2026-84434.yaml","stars":null,"title":"WordPress Gravity Forms Plugin \u003c=3.1.0.4 - Unauthenticated Arbitrary File Upload"}],"tier":"weaponised"},"has_fix":null,"headline":"Gravity Forms \u003c= 3.1.0.4 - Unauthenticated Arbitrary File Upload via Hidden File Upload Field","id":"CVE-2026-84434","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":"IBM Guardium Data Protection is affected by multiple vulnerabilities.","id":"CVE-2026-84436"},"packages":[],"prev":{"headline":"Concrete CMS 9 through 9.5.2 is vulnerable to CSRFin the Boards custom slot dialog controller","id":"CVE-2026-84432"},"products":["Gravity Forms"],"published":"2026-09-19","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)"},{"class":"attribution","licence":"MIT","name":"Nuclei templates"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-09-19","vendors":["Gravity Forms"]},"summary":"Unauthenticated attackers can upload executable files via hidden fields in Gravity Forms, leading to remote code execution.","url":"https://insights.sbomify.com/CVE-2026-84434/"}