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Vulnerability details

CVE-2026-111675

xiaochong0302 course-tencent-cloud

Course-tencent-cloud through 2.0.1 Verification Code Brute Force Account Takeover

CVSS 4.0
9.1Critical

Official 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.

CVSS scores

ScoreVersionSourceVector
9.1Critical 4.0 CVEProject cvelistV5 (CNA) (VulnCheck) 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
7.4High 3.1 CVEProject cvelistV5 (CNA) (VulnCheck) CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

VendorProductVersionsSource
xiaochong0302 course-tencent-cloud v ≤ 2.0.1 CVEProject cvelistV5 (CNA)

References and advisories

4
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Details

Published
2026-10-16
Last updated
2026-10-19
State
Published
Assigner (CNA)
VulnCheck
Kolun priority
25 · Low

Exploit prediction (EPSS)

0.53%
Probability of exploitation in 30 days
45.2%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
No
Exploitation
Proof of concept
Technical impact
Total

Weaknesses (CWE)

  • CWE-307
    Improper Restriction of Excessive Authentication Attempts