{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3296 exists.","fix":"No fix has been published for CVE-2026-3296 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-3296 is a critical unsafe deserialization vulnerability in wpeverest Everest Forms – Contact Form, Payment Form, Quiz, Survey \u0026 Custom Form Builder, published on 8 Apr 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-2026-3296 and fix it if it is affected.\n\nWhat it is: CVE-2026-3296 is a critical unsafe deserialization vulnerability in wpeverest Everest Forms – Contact Form, Payment Form, Quiz, Survey \u0026 Custom Form Builder, published on 8 Apr 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-2026-3296 exists.\n\nAffected product: wpeverest Everest Forms – Contact Form, Payment Form, Quiz, Survey \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-2026-3296/ (Markdown: https://insights.sbomify.com/CVE-2026-3296/index.md)","id":"CVE-2026-3296","markdown":"https://insights.sbomify.com/CVE-2026-3296/index.md","name":"CVE-2026-3296","record":{"aliases":["GHSA-rc2g-jh8w-mqh9"],"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 achieve remote code execution by injecting serialized PHP objects into form entries, which are deserialized when administrators view them.","user_interaction":"not_required","vuln_class":"deserialization"},"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-502","name":"Deserialization of Untrusted Data"}],"description":"The Everest Forms plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.4.3 via deserialization of untrusted input from form entry metadata. This is due to the html-admin-page-entries-view.php file calling PHP's native unserialize() on stored entry meta values without passing the allowed_classes parameter. This makes it possible for unauthenticated attackers to inject a serialized PHP object payload through any public Everest Forms form field. The payload survives sanitize_text_field() sanitization (serialization control characters are not stripped) and is stored in the wp_evf_entrymeta database table. When an administrator views entries or views an individual entry, the unsafe unserialize() call processes the stored data without class restrictions.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-05-26","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":1,"refs":[{"date":"2026-05-26T06:33:09Z","kind":"github_poc","ref":"https://github.com/xxconi/CVE-2026-3296","stars":0,"title":"CVE-2026-3296 is a CVSS 9.8 Critical unauthenticated PHP Object Injection vulnerability in the Everest Forms WordPress plugin"},{"date":null,"kind":"nuclei","ref":"http/cves/2026/CVE-2026-3296.yaml","stars":null,"title":"Everest Forms WordPress Plugin \u003c= 3.4.3 - PHP Object Injection"}],"tier":"weaponised"},"has_fix":null,"headline":"Everest Forms \u003c= 3.4.3 - Unauthenticated PHP Object Injection via Form Entry Metadata","id":"CVE-2026-3296","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"deserialization","year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"Cross-site scripting in Page Builder: Pagelayer – Drag and Drop website builder","id":"CVE-2026-3297"},"packages":[],"prev":{"headline":"IBM Cloud Pak System Cross-Site Scripting","id":"CVE-2026-3295"},"products":["Everest Forms – Contact Form, Payment Form, Quiz, Survey \u0026 Custom Form Builder"],"published":"2026-04-08","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":"2026-04-08","vendors":["wpeverest"]},"summary":"Unauthenticated attackers can achieve remote code execution by injecting serialized PHP objects into form entries, which are deserialized when administrators view them.","url":"https://insights.sbomify.com/CVE-2026-3296/"}