{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-123621 exists.","exposure":"","fix":"No fix has been published for CVE-2026-123621 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-123621 is a high-severity vulnerability in webmin usermin, published on 6 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-123621 and fix it if it is affected.\n\nWhat it is: CVE-2026-123621 is a high-severity vulnerability in webmin usermin, published on 6 Nov 2026. \nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-123621 exists.\n\nAffected product: webmin usermin. 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-2026-123621/ (Markdown: https://insights.sbomify.com/CVE-2026-123621/index.md)","id":"CVE-2026-123621","markdown":"https://insights.sbomify.com/CVE-2026-123621/index.md","name":"CVE-2026-123621","record":{"aliases":["GHSA-6rhc-3jj8-rcqx"],"analysis":null,"analysis_generated_by":null,"assigner":"VulnCheck","cpe":[],"cvss":{"score":8.6,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"Usermin through 2.570 contains a path traversal vulnerability in mailbox/detachall.cgi that allows remote unauthenticated attackers to write files outside the temporary directory via unsanitized attachment filenames. Attackers can email attachments with ../ sequences in filenames, and when the recipient downloads all attachments, files like ~/.forward are overwritten, enabling command execution.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Usermin through 2.570 Path Traversal File Write via detachall.cgi","id":"CVE-2026-123621","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"Usermin through 2.570 XSS via mailbox detach.cgi type Parameter","id":"CVE-2026-123622"},"nickname":null,"packages":[],"prev":{"headline":"Usermin through 2.570 OS Command Injection via Read Mail IMAP Folder Deletion","id":"CVE-2026-123620"},"products":["usermin"],"published":"2026-11-06","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":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-11-06","vendors":["webmin"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-123621/"}