{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-21087 exists.","fix":"No fix has been published for CVE-2021-21087 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-21087 is a medium-severity cross-site scripting vulnerability in Adobe Coldfusion, published on 15 Apr 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-21087 and fix it if it is affected.\n\nWhat it is: CVE-2021-21087 is a medium-severity cross-site scripting vulnerability in Adobe Coldfusion, published on 15 Apr 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-21087 exists.\n\nAffected product: Adobe Coldfusion. 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-2021-21087/ (Markdown: https://insights.sbomify.com/CVE-2021-21087/index.md)","id":"CVE-2021-21087","markdown":"https://insights.sbomify.com/CVE-2021-21087/index.md","name":"CVE-2021-21087","record":{"aliases":["GHSA-9mx8-9vhh-5qr7"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Adobe ColdFusion","requires_auth":"low_privilege","summary":"An attacker can execute arbitrary JavaScript in the victim's browser via improper input neutralization in Adobe ColdFusion, requiring user interaction.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"adobe","cpe":[{"product":"coldfusion","vendor":"adobe"}],"cvss":{"score":5.4,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","version":"3.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Adobe Coldfusion versions 2016 (update 16 and earlier), 2018 (update 10 and earlier) and 2021.0.0.323925 are affected by an Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability. An attacker could abuse this vulnerability to execute arbitrary JavaScript code in context of the current user. Exploitation of this issue requires user interaction.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":1,"refs":[{"date":null,"kind":"nuclei","ref":"http/cves/2021/CVE-2021-21087.yaml","stars":null,"title":"Adobe ColdFusion - Cross-Site Scripting"}],"tier":"weaponised"},"has_fix":null,"headline":"Cross-site scripting in ColdFusion","id":"CVE-2021-21087","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"adobe:coldfusion","products":["adobe:coldfusion"],"type":"xss","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Adobe Acrobat Pro DC Use-After-Free Remote Code Execution Vulnerability","id":"CVE-2021-21088"},"packages":[],"prev":{"headline":"Adobe Reader CoolType Arbitrary Stack Manipulation","id":"CVE-2021-21086"},"products":["ColdFusion"],"published":"2021-04-15","related":[{"cvss_score":10,"headline":"Adobe ColdFusion Path Traversal","id":"CVE-2026-48282","kev_date_added":"2026-07-07","published":"2026-06-30"},{"cvss_score":9.8,"headline":"Adobe ColdFusion Deserialization of Untrusted Data","id":"CVE-2023-38203","kev_date_added":"2024-01-08","published":"2023-07-20"},{"cvss_score":9.8,"headline":"Adobe ColdFusion Deserialization of Untrusted Data","id":"CVE-2023-29300","kev_date_added":"2024-01-08","published":"2023-07-12"},{"cvss_score":9.8,"headline":"Adobe ColdFusion Deserialization of Untrusted Data","id":"CVE-2023-26359","kev_date_added":"2023-08-21","published":"2023-03-23"},{"cvss_score":9.8,"headline":"Adobe ColdFusion Unrestricted File Upload","id":"CVE-2018-15961","kev_date_added":"2021-11-03","published":"2018-09-25"},{"cvss_score":9.8,"headline":"Adobe ColdFusion Deserialization of Untrusted Data","id":"CVE-2018-4939","kev_date_added":"2021-11-03","published":"2018-05-19"},{"cvss_score":9.8,"headline":"Adobe ColdFusion Deserialization","id":"CVE-2017-3066","kev_date_added":"2025-02-24","published":"2017-04-27"}],"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)"},{"class":"attribution","licence":"MIT","name":"Nuclei templates"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-04-23","vendors":["Adobe"]},"summary":"An attacker can execute arbitrary JavaScript in the victim's browser via improper input neutralization in Adobe ColdFusion, requiring user interaction.","url":"https://insights.sbomify.com/CVE-2021-21087/"}