{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-4420 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2025-4420 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-4420 is a medium-severity cross-site scripting vulnerability in themehunk Vayu Blocks – Website Builder for the Block Editor, published on 3 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-4420 and fix it if it is affected.\n\nWhat it is: CVE-2025-4420 is a medium-severity cross-site scripting vulnerability in themehunk Vayu Blocks – Website Builder for the Block Editor, published on 3 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2025-4420 in the wild and no public exploit code.\n\nAffected product: themehunk Vayu Blocks – Website Builder for the Block Editor. 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-2025-4420/ (Markdown: https://insights.sbomify.com/CVE-2025-4420/index.md)","id":"CVE-2025-4420","markdown":"https://insights.sbomify.com/CVE-2025-4420/index.md","name":"CVE-2025-4420","record":{"aliases":["GHSA-g47q-4gcv-4qvr"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress plugin","requires_auth":"low_privilege","summary":"Authenticated attackers can inject arbitrary scripts via the containerWidth parameter, leading to stored XSS execution on victim pages.","user_interaction":"not_required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Wordfence","cpe":[],"cvss":{"score":6.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/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 Vayu Blocks – Gutenberg Blocks for WordPress \u0026 WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘containerWidth’ parameter in all versions up to, and including, 1.3.1 due to a missing capability check on the vayu_blocks_option_panel_callback() function and insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.","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":"Cross-site scripting in Vayu Blocks – Website Builder for the Block Editor","id":"CVE-2025-4420","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2025"},"n_packages":0,"n_references":4,"next":{"headline":"EfiSmiServices: gEfiSmmCpuProtocol, SMM memory corruption vulnerabilities in SMM module","id":"CVE-2025-4421"},"packages":[],"prev":{"headline":"Path traversal in Hot Random Image","id":"CVE-2025-4419"},"products":["Vayu Blocks – Website Builder for the Block Editor"],"published":"2025-06-03","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-08","vendors":["themehunk"]},"summary":"Authenticated attackers can inject arbitrary scripts via the containerWidth parameter, leading to stored XSS execution on victim pages.","url":"https://insights.sbomify.com/CVE-2025-4420/"}