{"id":"CVE-2026-111675","revision":"cdfaf49ac17848a5af95484c2d77ec33","records":[{"revision":"cdfaf49ac17848a5af95484c2d77ec33","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-111675","aliases":[],"title":"Course-tencent-cloud through 2.0.1 Verification Code Brute Force Account Takeover","description":"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.","state":0,"publishedAt":"2026-10-16T17:39:35.253+00:00","modifiedAt":"2026-10-19T13:27:20.007+00:00","affected":[{"ecosystem":"Vendor product","name":"course-tencent-cloud","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"xiaochong0302\",\n                    \"product\": \"course-tencent-cloud\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThanOrEqual\": \"2.0.1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\"\n                        }\n                    ],\n                    \"packageURL\": \"pkg:github/xiaochong0302/course-tencent-cloud\",\n                    \"repo\": \"https://github.com/xiaochong0302/course-tencent-cloud\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","score":9.1,"severity":"CRITICAL"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","score":7.4,"severity":"HIGH"}],"references":["https://hackmd.io/@hieuPenguinnn/ctc-verify-code-brute-force-account-takeover","https://github.com/xiaochong0302/course-tencent-cloud/blob/v2.0.1/app/Services/Verify.php#L27-L73","https://github.com/xiaochong0302/course-tencent-cloud/blob/v2.0.1/app/Services/Logic/Account/PasswordReset.php","https://www.vulncheck.com/advisories/course-tencent-cloud-through-2.0.1-verification-code-brute-force-account-takeover"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111675","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-111675","identifiers":["CVE-2026-111675"]},"retained":false,"historicalAffected":[]}],"coverage":[]}