{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-111675", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-10-16T14:31:18.279Z", "datePublished": "2026-10-16T17:39:35.253Z", "dateUpdated": "2026-10-19T13:27:20.007Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-16T17:39:35.253Z" }, "datePublic": "2026-10-15T00:00:00.000Z", "title": "Course-tencent-cloud through 2.0.1 Verification Code Brute Force Account Takeover", "descriptions": [ { "lang": "en", "value": "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." } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "Improper Restriction of Excessive Authentication Attempts", "cweId": "CWE-307", "type": "CWE" } ] } ], "affected": [ { "vendor": "xiaochong0302", "product": "course-tencent-cloud", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThanOrEqual": "2.0.1", "status": "affected", "versionType": "custom" } ], "packageURL": "pkg:github/xiaochong0302/course-tencent-cloud", "repo": "https://github.com/xiaochong0302/course-tencent-cloud" } ], "metrics": [ { "format": "CVSS", "cvssV4_0": { "version": "4.0", "vectorString": "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", "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 9.1, "baseSeverity": "CRITICAL" } }, { "format": "CVSS", "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseScore": 7.4, "baseSeverity": "HIGH" } } ], "references": [ { "url": "https://hackmd.io/@hieuPenguinnn/ctc-verify-code-brute-force-account-takeover", "tags": [ "third-party-advisory" ] }, { "url": "https://github.com/xiaochong0302/course-tencent-cloud/blob/v2.0.1/app/Services/Verify.php#L27-L73", "tags": [ "technical-description" ] }, { "url": "https://github.com/xiaochong0302/course-tencent-cloud/blob/v2.0.1/app/Services/Logic/Account/PasswordReset.php", "tags": [ "technical-description" ] }, { "name": "VulnCheck Advisory: Course-tencent-cloud through 2.0.1 Verification Code Brute Force Account Takeover", "tags": [ "third-party-advisory" ], "url": "https://www.vulncheck.com/advisories/course-tencent-cloud-through-2.0.1-verification-code-brute-force-account-takeover" } ], "credits": [ { "lang": "en", "value": "hieuPenguinnn", "type": "finder" } ], "x_generator": { "engine": "vulncheck-endgame" } }, "adp": [ { "references": [ { "url": "https://hackmd.io/@hieuPenguinnn/ctc-verify-code-brute-force-account-takeover", "tags": [ "exploit" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-10-19T13:26:33.507247Z", "id": "CVE-2026-111675", "options": [ { "Exploitation": "poc" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-19T13:27:20.007Z" } } ] } }