CVE Feed

    Dashboard / CVE / CVE-2026-78145

    CVE-2026-78145

    A vulnerability has been found in CTFd up to 3.8.4. The affected element is the function _is_safe_url of the file CTFd/utils/validators/__init__.py. Such manipulation of the argument Next leads to open redirect. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The name of the patch is 5d8515842fd1ab2c3a9f2dde9ffca907aa334ea9. Upgrading the affected component is recommended.

    Published:Aug 23, 2026
    Last Modified:Aug 24, 2026
    EPS:Aug 23, 2026
    EPSS Score:0.0042
    CVSS Score:4.3

    Affected Products

    Vendor
    Ctfd
    Product
    Ctfd

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-178 Cross-Site Flashing

    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-2026-30345 (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