Let's Chat 0.3.0 - 0.4.8 Broken Access Control File Disclosure via GET /files route
33Vexday Risk Score
Sem sinal de exploração. Ela tem prova de conceito pública.
ssvc Attendcvss 5.3epss 0.3%
da publicação à arma0 dias
Publicada no NVD28 de jul.
1ª PoC26 de jul.
probabilidade de exploração
0.3%top 82% das CVEs
exploração observada
nãonenhuma fonte reporta
2 exploit(s) público(s)
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.
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
Produtos afetados
sdelements · lets-chatPoCs públicas encontradas — 2
githubgithub.com/theopaid/CVE-2026-66750-Insufficient-Access-Controls-Allow-for-Unauthorized-File-Downloads-Let-s-Chat-★ 0cve_referencegithub.com/theopaid/Insufficient-Access-Controls-Allow-for-Unauthorized-File-Downloads-Let-s-Chat-não verificado⚠ Recursos públicos, para você avaliar a exposição de sistemas que controla ou está autorizado a testar. Teste apenas com autorização.