CVE-2026-111675
7.4, highCourse-tencent-cloud through 2.0.1 contains an improper restriction of authentication attempts vulnerability that allows unauthenticated…
- CVSS
- 7.4, high high CVSS v3.1
- EPSS, next 30 days
- n/a
- Exploitation
- No public evidence
- Published
- 16 Oct 2026yesterday
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.
Details
- Vendor
- Xiaochong0302
- Product
- course-tencent-cloud
- Weakness
- CWE-307 (opens in a new tab)
- Status
- Deferred
- Updated
- 16 Oct 2026
- Assigner
- disclosure@vulncheck.com
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
References 4
Other references 4
- github.com /xiaochong0302/course-tencent-cloud/blob/v2.0.1/app/Services/Logic/Account/PasswordReset.php (opens in a new tab)
- github.com /xiaochong0302/course-tencent-cloud/blob/v2.0.1/app/Services/Verify.php#L27-L73 (opens in a new tab)
- hackmd.io /@hieuPenguinnn/ctc-verify-code-brute-force-account-takeover (opens in a new tab)
- vulncheck.com /advisories/course-tencent-cloud-through-2.0.1-verification-code-brute-force-account-takeover (opens in a new tab)
The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.
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Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.