{"schema":"threatline.record/2","record":{"id":"CVE-2026-111675","aliases":[],"summary":"Course-tencent-cloud through 2.0.1 Verification Code Brute Force Account Takeover","details":"Course-tencent-cloud through 2.0.1 contains an improper restriction of authentication attempts vulnerability that allows unauthenticated attackers to brute force 6-digit SMS/email verification codes, which are never invalidated or attempt-limited. Attackers who know a victim's phone or email can trigger a code and rotate source IPs against the password reset and verify login endpoints to take over accounts.","categories":["Unclassified"],"product":"course-tencent-cloud","vendor":"xiaochong0302","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111675","source_modified_at":"2026-10-19T13:27:20.007Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"course-tencent-cloud","vendor":"xiaochong0302","versions":[{"version":"0","lessThanOrEqual":"2.0.1","status":"affected","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":9.1,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.0041,"percentile":0.34116,"score_date":"2026-10-23"},"published_at":"2026-10-16T17:39:35.253Z","modified_at":"2026-10-19T13:27:20.007Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-111675","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T13:27:20.007Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-111675","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://hackmd.io/@hieuPenguinnn/ctc-verify-code-brute-force-account-takeover","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/xiaochong0302/course-tencent-cloud/blob/v2.0.1/app/Services/Verify.php#L27-L73","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/xiaochong0302/course-tencent-cloud/blob/v2.0.1/app/Services/Logic/Account/PasswordReset.php","tags":["technical-description"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/course-tencent-cloud-through-2.0.1-verification-code-brute-force-account-takeover","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"total","assessed_at":"2026-10-19T13:26:33.507247Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-19T13:27:20.007Z","content_hash":"434cc9a5bac263cc93136e49c845db1d3d52935a3ad9993c06693fa46d523357"}}