{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-93647 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-93647 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-93647 is a critical cross-site scripting vulnerability in Zimbra Collaboration Suite (ZCS), published on 25 Sep 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-2026-93647 and fix it if it is affected.\n\nWhat it is: CVE-2026-93647 is a critical cross-site scripting vulnerability in Zimbra Collaboration Suite (ZCS), published on 25 Sep 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-2026-93647 in the wild and no public exploit code.\n\nAffected product: Zimbra Collaboration Suite (ZCS). 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-2026-93647/ (Markdown: https://insights.sbomify.com/CVE-2026-93647/index.md)","id":"CVE-2026-93647","markdown":"https://insights.sbomify.com/CVE-2026-93647/index.md","name":"CVE-2026-93647","record":{"aliases":["GHSA-h5jf-rfhh-rx8c"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["data_read","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Zimbra Collaboration Suite","requires_auth":"none","summary":"An unauthenticated attacker can inject malicious scripts into calendar messages, allowing them to steal mailbox data and hijack user sessions in Zimbra.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"rapid7","cpe":[],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"An unauthenticated calendar sender can place active markup in a COUNTER message's RFC From address. Selecting the message in Zimbra Classic triggers stored XSS, allowing the attacker to access mailbox data and act as the victim.","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 Zimbra Collaboration Suite (ZCS)","id":"CVE-2026-93647","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Open redirect in Adoptium Temurin","id":"CVE-2026-93649"},"packages":[],"prev":{"headline":"Path traversal in Zimbra Collaboration Suite (ZCS)","id":"CVE-2026-93643"},"products":["Zimbra Collaboration Suite (ZCS)"],"published":"2026-09-25","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":"total"},"state":"PUBLISHED","updated":"2026-09-28","vendors":["Zimbra"]},"summary":"An unauthenticated attacker can inject malicious scripts into calendar messages, allowing them to steal mailbox data and hijack user sessions in Zimbra.","url":"https://insights.sbomify.com/CVE-2026-93647/"}