{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-104083 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-104083 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-104083 is a medium-severity cross-site scripting vulnerability in Smartertools Smartermail, published on 9 Oct 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-2026-104083 and fix it if it is affected.\n\nWhat it is: CVE-2026-104083 is a medium-severity cross-site scripting vulnerability in Smartertools Smartermail, published on 9 Oct 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-2026-104083 in the wild and no public exploit code.\n\nAffected product: Smartertools Smartermail. 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-2026-104083/ (Markdown: https://insights.sbomify.com/CVE-2026-104083/index.md)","id":"CVE-2026-104083","markdown":"https://insights.sbomify.com/CVE-2026-104083/index.md","name":"CVE-2026-104083","record":{"aliases":["GHSA-vvh8-jc22-6q2f"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["code_execution","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"SmarterMail webmail","requires_auth":"none","summary":"Remote attackers can execute arbitrary scripts in victim webmail sessions via crafted iCal messages, enabling data exfiltration and session hijacking.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/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":"SmarterMail before build 9777 contains a stored mutation cross-site scripting vulnerability that allows remote attackers to inject executable script by placing payloads inside a \u003cstyle\u003e element nested within MathML foreign content (\u003cmath\u003e\u003cmtext\u003e\u003cmglyph\u003e), which the custom HTML sanitizer treats as inert CDATA text but browsers reparse as live markup. Attackers can deliver a crafted calendar (iCal) message containing an \u003cimg src=x onerror=...\u003e payload that executes automatically in the recipient's webmail session at /interface/message-iframe when the message is opened, enabling script execution and data exfiltration unconstrained by the interface's permissive Content-Security-Policy.","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":"SmarterMail \u003c Build 9777 Stored Mutation XSS via MathML Foreign Content","id":"CVE-2026-104083","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"SmarterMail \u003c Build 9777 Stale JWT Role Claim Privilege Escalation via Refresh Token","id":"CVE-2026-104084"},"packages":[],"prev":{"headline":"SmarterMail \u003c Build 9777 SysAdmin Remote Code Execution via Volume Mount","id":"CVE-2026-104082"},"products":["Smartermail"],"published":"2026-10-09","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":"2026-10-27","vendors":["Smartertools"]},"summary":"Remote attackers can execute arbitrary scripts in victim webmail sessions via crafted iCal messages, enabling data exfiltration and session hijacking.","url":"https://insights.sbomify.com/CVE-2026-104083/"}