{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2016-9920 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2016-9920 is a high-severity command injection vulnerability in Roundcube Webmail, published on 8 Dec 2016. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2016-9920 and fix it if it is affected.\n\nWhat it is: CVE-2016-9920 is a high-severity command injection vulnerability in Roundcube Webmail, published on 8 Dec 2016. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2016-9920 in the wild and no public exploit code.\n\nAffected product: Roundcube Webmail. 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-2016-9920/ (Markdown: https://insights.sbomify.com/CVE-2016-9920/index.md)","id":"CVE-2016-9920","markdown":"https://insights.sbomify.com/CVE-2016-9920/index.md","name":"CVE-2016-9920","record":{"aliases":["CVE-2017-1000204","DEBIAN-CVE-2016-9920","DLA-737-1","GHSA-f59r-7mfp-ww98","MGASA-2016-0430","UBUNTU-CVE-2016-9920"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"Roundcube webmail","requires_auth":"low_privilege","summary":"Authenticated attackers can execute arbitrary code via crafted email requests when sendmail is enabled without SMTP configuration.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"webmail","vendor":"roundcube"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"description":"steps/mail/sendmail.inc in Roundcube before 1.1.7 and 1.2.x before 1.2.3, when no SMTP server is configured and the sendmail program is enabled, does not properly restrict the use of custom envelope-from addresses on the sendmail command line, which allows remote authenticated users to execute arbitrary code via a modified HTTP request that sends a crafted e-mail message.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2017-01-06","github_poc":1,"max_poc_stars":48,"metasploit":0,"nuclei":0,"refs":[{"date":"2017-01-06T17:55:44Z","kind":"github_poc","ref":"https://github.com/t0kx/exploit-CVE-2016-9920","stars":48,"title":"Roundcube 1.0.0 \u003c= 1.2.2 Remote Code Execution exploit and vulnerable container"}],"tier":"poc_unverified"},"has_fix":true,"headline":"Command injection in n/a","id":"CVE-2016-9920","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"roundcube:webmail","products":["roundcube:webmail"],"type":"command_injection","year":"2016"},"n_packages":0,"n_references":5,"next":{"headline":"Denial of service in n/a","id":"CVE-2016-9921"},"packages":[],"prev":{"headline":"Denial of service in n/a","id":"CVE-2016-9919"},"products":["n/a"],"published":"2016-12-08","related":[{"cvss_score":9.3,"headline":"RoundCube Webmail Cross-Site Scripting","id":"CVE-2024-42009","kev_date_added":"2025-06-09","published":"2024-08-05"},{"cvss_score":7.2,"headline":"RoundCube Webmail Cross-site Scripting","id":"CVE-2025-68461","kev_date_added":"2026-02-20","published":"2025-12-18"},{"cvss_score":10,"headline":"PHPMailer susceptible to arbitrary code execution","id":"CVE-2008-5619","kev_date_added":null,"published":"2008-12-17"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2024-37385","kev_date_added":null,"published":"2024-06-07"},{"cvss_score":9.3,"headline":"Cross-site scripting in n/a","id":"CVE-2024-42008","kev_date_added":null,"published":"2024-08-05"},{"cvss_score":8.8,"headline":"Command injection in Webmail","id":"CVE-2026-74997","kev_date_added":null,"published":"2026-08-17"},{"cvss_score":8.8,"headline":"Privilege escalation in n/a","id":"CVE-2017-8114","kev_date_added":null,"published":"2017-04-29"}],"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":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-06","vendors":["n/a"]},"summary":"Authenticated attackers can execute arbitrary code via crafted email requests when sendmail is enabled without SMTP configuration.","url":"https://insights.sbomify.com/CVE-2016-9920/"}