{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-66358 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-66358 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-66358 is a medium-severity cross-site scripting vulnerability in Extra Innovation Inc. acmailer CGI, published on 19 Aug 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-2026-66358 and fix it if it is affected.\n\nWhat it is: CVE-2026-66358 is a medium-severity cross-site scripting vulnerability in Extra Innovation Inc. acmailer CGI, published on 19 Aug 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-2026-66358 in the wild and no public exploit code.\n\nAffected product: Extra Innovation Inc. acmailer CGI. 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-2026-66358/ (Markdown: https://insights.sbomify.com/CVE-2026-66358/index.md)","id":"CVE-2026-66358","markdown":"https://insights.sbomify.com/CVE-2026-66358/index.md","name":"CVE-2026-66358","record":{"aliases":["GHSA-qv73-xfjm-gc7w"],"analysis":{"component_type":"web_application","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"acmailer CGI","requires_auth":"none","summary":"An attacker can execute arbitrary scripts via a cross-site scripting vulnerability in acmailer, potentially compromising user sessions.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jpcert","cpe":[],"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","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"A cross-site scripting vulnerability exists in acmailer, which may allow an attacker to execute an arbitrary script.","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 acmailer CGI","id":"CVE-2026-66358","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"MZ Automation libiec61850 Out-of-bounds Read","id":"CVE-2026-66360"},"packages":[],"prev":{"headline":"inets,httpd:HTTP Request Smuggling via obs-fold Header Continuation","id":"CVE-2026-66357"},"products":["acmailer CGI","acmailer DB"],"published":"2026-08-19","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":"2026-08-20","vendors":["Extra Innovation Inc."]},"summary":"An attacker can execute arbitrary scripts via a cross-site scripting vulnerability in acmailer, potentially compromising user sessions.","url":"https://insights.sbomify.com/CVE-2026-66358/"}