{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-3884 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-3884 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-3884 is a medium-severity cross-site scripting vulnerability in spin.js, published on 11 Mar 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-2026-3884 and fix it if it is affected.\n\nWhat it is: CVE-2026-3884 is a medium-severity cross-site scripting vulnerability in spin.js, published on 11 Mar 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-2026-3884 in the wild and no public exploit code.\n\nAffected product: spin.js. 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-2026-3884/ (Markdown: https://insights.sbomify.com/CVE-2026-3884/index.md)","id":"CVE-2026-3884","markdown":"https://insights.sbomify.com/CVE-2026-3884/index.md","name":"CVE-2026-3884","record":{"aliases":["DEBIAN-CVE-2026-3884","GHSA-h99f-r56h-cmrp","UBUNTU-CVE-2026-3884"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"JavaScript spinner library","requires_auth":"none","summary":"An attacker can execute arbitrary JavaScript in the user's browser via prototype pollution in the spin.js library.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"snyk","cpe":[{"product":"spin.js","vendor":"spin.js"}],"cvss":{"score":5.1,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Versions of the package spin.js before 3.0.0 are vulnerable to Cross-site Scripting (XSS) via the spin() function that allows a creation of more than 1 alert for each 'target' element. An attacker would need to set an arbitrary key-value pair on Object.prototype through a crafted URL achieving a prototype pollution first, before being able to execute arbitrary JavaScript in the context of the user's browser.","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":"Cross-site scripting in spin.js","id":"CVE-2026-3884","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Cross-site scripting in Shortcodes Ultimate – Content Elements","id":"CVE-2026-3885"},"packages":[],"prev":{"headline":"This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.","id":"CVE-2026-3883"},"products":["spin.js"],"published":"2026-03-11","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"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":"2026-03-11","vendors":["n/a"]},"summary":"An attacker can execute arbitrary JavaScript in the user's browser via prototype pollution in the spin.js library.","url":"https://insights.sbomify.com/CVE-2026-3884/"}