{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-66750 exists.","fix":"No fix has been published for CVE-2026-66750 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-66750 is a medium-severity missing authorization vulnerability in sdelements lets-chat, published on 28 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-66750 and fix it if it is affected.\n\nWhat it is: CVE-2026-66750 is a medium-severity missing authorization vulnerability in sdelements lets-chat, published on 28 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-66750 exists.\n\nAffected product: sdelements lets-chat. 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-2026-66750/ (Markdown: https://insights.sbomify.com/CVE-2026-66750/index.md)","id":"CVE-2026-66750","markdown":"https://insights.sbomify.com/CVE-2026-66750/index.md","name":"CVE-2026-66750","record":{"aliases":["GHSA-mf6v-fwp6-46g3"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Let's Chat","requires_auth":"low_privilege","summary":"Authenticated attackers can download files from private rooms they do not belong to due to missing membership checks in the file retrieval route.","user_interaction":"not_required","vuln_class":"missing_authorization"},"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:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"}],"description":"Let's Chat 0.3.0 through 0.4.8 contains a broken access control vulnerability that allows authenticated attackers to download file attachments from private and password-protected rooms they are not a member of by exploiting missing room membership checks in the file retrieval route. Attackers can enumerate adjacent MongoDB ObjectIds derived from a known file ID to recover files uploaded by other users, as the GET /files/:id/:name route in app/controllers/files.js only enforces login authentication without consulting room membership or the Room.canJoin check.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-07-26","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-07-26T14:29:32Z","kind":"github_poc","ref":"https://github.com/theopaid/CVE-2026-66750-Insufficient-Access-Controls-Allow-for-Unauthorized-File-Downloads-Let-s-Chat-","stars":0,"title":"Security Advisory: Insufficient Access Controls Allow for Unauthorized File Downloads (Let's Chat)"}],"tier":"weaponised"},"has_fix":false,"headline":"Let's Chat 0.3.0 - 0.4.8 Broken Access Control File Disclosure via GET /files route","id":"CVE-2026-66750","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Let's Chat 0.3.0 - 0.4.8 Improper Authorization via DELETE /rooms/:room","id":"CVE-2026-66751"},"packages":[],"prev":{"headline":"Let's Chat 0.4.0 - 0.4.8 Denial of Service via Null Dereference in Room Lookup","id":"CVE-2026-66749"},"products":["lets-chat"],"published":"2026-07-28","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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-28","vendors":["sdelements"]},"summary":"Authenticated attackers can download files from private rooms they do not belong to due to missing membership checks in the file retrieval route.","url":"https://insights.sbomify.com/CVE-2026-66750/"}