{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-45797 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-45797 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-45797 is a medium-severity cross-site scripting vulnerability in heyform, published on 20 Jul 2026. 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-2026-45797 and fix it if it is affected.\n\nWhat it is: CVE-2026-45797 is a medium-severity cross-site scripting vulnerability in heyform, published on 20 Jul 2026. 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-2026-45797 in the wild and no public exploit code.\n\nAffected product: heyform. 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-2026-45797/ (Markdown: https://insights.sbomify.com/CVE-2026-45797/index.md)","id":"CVE-2026-45797","markdown":"https://insights.sbomify.com/CVE-2026-45797/index.md","name":"CVE-2026-45797","record":{"aliases":["GHSA-m94h-jxvc-hhch"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"HeyForm form builder","requires_auth":"none","summary":"An attacker can upload malicious SVG files to trigger stored XSS on the HeyForm domain without authentication, potentially compromising user sessions.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":6.4,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"},{"id":"CWE-434","name":"Unrestricted Upload of File with Dangerous Type"}],"description":"HeyForm is an open-source form builder. Prior to version 3.0.0-rc.7, the `/api/upload` endpoint allows unauthenticated file uploads including SVG files. Uploaded SVGs are stored in the static assets directory and served with `Content-Type: image/svg+xml` by Express's serve-static middleware, allowing an attacker to achieve stored cross-site scripting (XSS) on the heyform domain without any authentication. Version 3.0.0-rc.7 contains a patch for the issue.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"HeyForm Vulnerable to Stored XSS via Unauthenticated SVG File Upload","id":"CVE-2026-45797","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Memory corruption in wazuh","id":"CVE-2026-45798"},"packages":[],"prev":{"headline":"Coder vulnerable to unauthenticated SSRF via Azure Instance Identity Endpoint","id":"CVE-2026-45796"},"products":["heyform"],"published":"2026-07-20","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":"2026-07-20","vendors":["heyform"]},"summary":"An attacker can upload malicious SVG files to trigger stored XSS on the HeyForm domain without authentication, potentially compromising user sessions.","url":"https://insights.sbomify.com/CVE-2026-45797/"}