{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-103999 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-103999 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-103999 is a high-severity cross-site scripting vulnerability in themefic Ultra Addons for Contact Form 7, published on 16 Oct 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-2026-103999 and fix it if it is affected.\n\nWhat it is: CVE-2026-103999 is a high-severity cross-site scripting vulnerability in themefic Ultra Addons for Contact Form 7, published on 16 Oct 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-2026-103999 in the wild and no public exploit code.\n\nAffected product: themefic Ultra Addons for Contact Form 7. 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-2026-103999/ (Markdown: https://insights.sbomify.com/CVE-2026-103999/index.md)","id":"CVE-2026-103999","markdown":"https://insights.sbomify.com/CVE-2026-103999/index.md","name":"CVE-2026-103999","record":{"aliases":["GHSA-3658-jvcq-xc7g"],"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 web scripts via file upload in Ultra Addons for Contact Form 7, leading to stored XSS.","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 Ultra Addons for Contact Form 7 plugin for WordPress is vulnerable to Stored Cross-Site Scripting via File Upload in all versions up to, and including, 3.5.54 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 extension blocklist gatekeeper is bypassed by uploading text-type files (.txt, .csv, .vtt, .srt, .asc) whose contents begin with an HTML payload such as '\u003cBODY onload=…\u003e', as the check classifies these files as text/plain without inspecting their byte content.","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":"Ultra Addons for Contact Form 7 \u003c= 3.5.54 - Unauthenticated Stored Cross-Site Scripting via File Upload","id":"CVE-2026-103999","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":7,"next":{"headline":"Cross-site scripting in Simply Schedule Appointments","id":"CVE-2026-104000"},"packages":[],"prev":{"headline":"Form Maker by 10Web \u003c= 1.15.48 - Reflected Cross-Site Scripting via 'inputs' Parameter Array Key","id":"CVE-2026-103998"},"products":["Ultra Addons for Contact Form 7"],"published":"2026-10-16","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":"2026-10-16","vendors":["themefic"]},"summary":"Unauthenticated attackers can inject arbitrary web scripts via file upload in Ultra Addons for Contact Form 7, leading to stored XSS.","url":"https://insights.sbomify.com/CVE-2026-103999/"}