CVE Feed

    Dashboard / CVE / CVE-2026-121562

    CVE-2026-121562

    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:Nov 3, 2026
    Last Modified:Nov 3, 2026
    EPS:Nov 3, 2026
    EPSS Score:
    CVSS Score:5.3

    Affected Products

    Vendor
    Ctfd
    Product
    Ctfd

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-863 Incorrect Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2025-29419 (CVSS 7.1) — CTFd v3.7.6 was discovered to be vulnerable to a man-in-the-middle attack.…
    CVE-2026-78145 (CVSS 2.1) — A vulnerability has been found in CTFd up to 3.8.4. The affected element is the function _is_safe_url of the f…
    CVE-2026-30345 (CVSS 7.5) — A zip slip vulnerability in the Admin import functionality of CTFd v3.8.1-18-gdb5a18c4 allows attackers to wri…
    CVE-2024-11717 (CVSS 6.3) — Tokens in CTFd used for account activation and password resetting can be used interchangeably for these operat…
    CVE-2024-11716 (CVSS 5.3) — While assignment of a user to a team (bracket) in CTFd should be possible only once, at the registration, a f…
    CVE-2024-42988 (CVSS 4.3) — Lack of access control in ChallengeSolves (/api/v1/challenges/<challenge id>/solves) of CTFd v2.0.0 - v3.7.2 a…
    CVE-2020-7245 (CVSS 9.8) — Incorrect username validation in the registration process of CTFd v2.0.0 - v2.2.2 allows an attacker to take o…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High