Description
CTFd 3.1.0 before 3.8.7 contains an information disclosure vulnerability in the /api/v1/teams list endpoint that exposes non-public team custom field values. Unauthenticated attackers can paginate GET requests to collect hidden registration data such as emails, phone numbers, and student IDs when team mode and public visibility are enabled.
Published: 2026-11-03
Score: 6.9 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 03 Nov 2026 15:30:00 +0000

Type Values Removed Values Added
Description CTFd 3.1.0 before 3.8.7 contains an information disclosure vulnerability in the /api/v1/teams list endpoint that exposes non-public team custom field values. Unauthenticated attackers can paginate GET requests to collect hidden registration data such as emails, phone numbers, and student IDs when team mode and public visibility are enabled.
Title CTFd 3.1.0 before 3.8.7 Information Disclosure via /api/v1/teams Endpoint
First Time appeared Ctfd
Ctfd ctfd
Weaknesses CWE-863
CPEs cpe:2.3:a:ctfd:ctfd:*:*:*:*:*:*:*:*
Vendors & Products Ctfd
Ctfd ctfd
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}

Subscriptions

Ctfd Ctfd
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-03T15:17:17.803Z

Reserved: 2026-11-03T14:46:18.615Z

Link: CVE-2026-121562

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-11-03T16:17:29.107

Modified: 2026-11-03T16:30:49.290

Link: CVE-2026-121562

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses