{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-3866 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2024-3866 yet. Limit exposure of the affected software until one is available.","what":"CVE-2024-3866 is a medium-severity cross-site scripting vulnerability in Ninjaforms Ninja Forms, published on 25 Sep 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2024-3866 and fix it if it is affected.\n\nWhat it is: CVE-2024-3866 is a medium-severity cross-site scripting vulnerability in Ninjaforms Ninja Forms, published on 25 Sep 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2024-3866 in the wild and no public exploit code.\n\nAffected product: Ninjaforms Ninja 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-2024-3866/ (Markdown: https://insights.sbomify.com/CVE-2024-3866/index.md)","id":"CVE-2024-3866","markdown":"https://insights.sbomify.com/CVE-2024-3866/index.md","name":"CVE-2024-3866","record":{"aliases":["GHSA-hj6g-33gj-29m6"],"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 inject scripts via the Referer header in Ninja Forms when maintenance mode is active, requiring user interaction.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Wordfence","cpe":[{"product":"ninja_forms","vendor":"ninjaforms"}],"cvss":{"score":4.7,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"The Ninja Forms Contact Form plugin for WordPress is vulnerable to Reflected Self-Based Cross-Site Scripting via the 'Referer' header in all versions up to, and including, 3.8.15 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Successful exploitation of this vulnerability requires \"maintenance mode\" for a targeted form to be enabled. However, there is no setting available to the attacker or even an administrator-level user to enable this mode. The mode is only enabled during a required update, which is a very short window of time. Additionally, because of the self-based nature of this vulnerability, attackers would have to rely on additional techniques to execute a supplied payload in the context of targeted user.","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":"Ninja Forms Contact Form \u003c= 3.8.15 - Reflected Self-Based Cross-Site Scripting via Referer","id":"CVE-2024-3866","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"ninjaforms:ninja_forms","products":["ninjaforms:ninja_forms"],"type":"xss","year":"2024"},"n_packages":0,"n_references":2,"next":{"headline":"Tainacan Interface \u003c= 2.7.2 - Reflected Cross-Site Scripting","id":"CVE-2024-3867"},"packages":[],"prev":{"headline":"Memory corruption in Firefox","id":"CVE-2024-3865"},"products":["Ninja Forms – The Contact Form Builder That Grows With You"],"published":"2024-09-25","related":[{"cvss_score":9.8,"headline":"Ninja-forms \u003c 3.11.1 - Unauthenticated PHP Objection","id":"CVE-2025-9083","kev_date_added":null,"published":"2025-09-18"},{"cvss_score":9.8,"headline":"Deserialization in n/a","id":"CVE-2016-1209","kev_date_added":null,"published":"2016-05-14"},{"cvss_score":9.1,"headline":"Information disclosure in n/a","id":"CVE-2018-20981","kev_date_added":null,"published":"2019-08-22"},{"cvss_score":8.8,"headline":"Cross-site request forgery in Ninja Forms","id":"CVE-2024-25572","kev_date_added":null,"published":"2024-04-11"},{"cvss_score":8.8,"headline":"Ninja Forms \u003c 3.4.34 - Authenticated SendWP Plugin Installation and Client Secret Key Disclosure","id":"CVE-2021-24163","kev_date_added":null,"published":"2021-04-05"},{"cvss_score":8.6,"headline":"Other in n/a","id":"CVE-2018-16308","kev_date_added":null,"published":"2018-09-01"},{"cvss_score":7.6,"headline":"WordPress Ninja Forms plugin \u003c= 3.6.25 - Contributor+ Broken Access Control vulnerability","id":"CVE-2023-38386","kev_date_added":null,"published":"2024-06-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"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":"2026-04-08","vendors":["kstover"]},"summary":"Unauthenticated attackers can inject scripts via the Referer header in Ninja Forms when maintenance mode is active, requiring user interaction.","url":"https://insights.sbomify.com/CVE-2024-3866/"}