{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-18328 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-18328 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-18328 is a high-severity cross-site scripting vulnerability in wpmudev Forminator Forms – Contact Form, Payment Form \u0026 Custom Form Builder, published on 25 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-2026-18328 and fix it if it is affected.\n\nWhat it is: CVE-2026-18328 is a high-severity cross-site scripting vulnerability in wpmudev Forminator Forms – Contact Form, Payment Form \u0026 Custom Form Builder, published on 25 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-2026-18328 in the wild and no public exploit code.\n\nAffected product: wpmudev Forminator Forms – Contact Form, Payment Form \u0026 Custom Form Builder. 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-2026-18328/ (Markdown: https://insights.sbomify.com/CVE-2026-18328/index.md)","id":"CVE-2026-18328","markdown":"https://insights.sbomify.com/CVE-2026-18328/index.md","name":"CVE-2026-18328","record":{"aliases":["GHSA-5mm9-h6w4-7v8m"],"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 inject arbitrary scripts via the error_description parameter in Forminator Forms, affecting sites using Stripe Checkout Sessions.","user_interaction":"not_required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Wordfence","cpe":[],"cvss":{"score":7.2,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 Forminator Forms – Contact Form, Payment Form \u0026 Custom Form Builder plugin for WordPress is vulnerable to DOM-Based Reflected Cross-Site Scripting via the 'error_description' parameter in all versions up to, and including, 1.57.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability is only triggerable on pages hosting a Forminator form configured to use the Stripe Checkout Sessions payment API, which became the default in 1.56.0.","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":"Forminator Forms \u003c= 1.57.0 - Unauthenticated DOM-Based Cross-Site Scripting via 'error_description' Parameter","id":"CVE-2026-18328","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":7,"next":{"headline":"NGINX ngx_http_js_module vulnerability","id":"CVE-2026-18329"},"packages":[],"prev":{"headline":"This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.","id":"CVE-2026-18326"},"products":["Forminator Forms – Contact Form, Payment Form \u0026 Custom Form Builder"],"published":"2026-08-25","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":"partial"},"state":"PUBLISHED","updated":"2026-08-25","vendors":["wpmudev"]},"summary":"Unauthenticated attackers can inject arbitrary scripts via the error_description parameter in Forminator Forms, affecting sites using Stripe Checkout Sessions.","url":"https://insights.sbomify.com/CVE-2026-18328/"}