CTFd vulnerabilities
3 known CVE vulnerabilities in CTFd, translated and rated.
- CVE-2025-29419Low risk· EPSS 4%
CTFd v3.7.6 was discovered to be vulnerable to a man-in-the-middle attack.
- CVE-2026-78145Medium
A vulnerability in CTFd up to 3.8.4 in the _is_safe_url function of the CTFd/utils/validators/__init__.py file. Manipulation of the Next argument leads to open redirect. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The patch name is 5d8515842fd1ab2c3a9f2dde9ffca907aa334ea9. Upgrading the affected component is recommended.
- CVE-2024-46242High
In CTFd 3.7.3, the validate_email function in CTFd/utils/validators/__init__.py is vulnerable to a Regular expression Denial of Service (ReDoS) attack. An attacker can supply a crafted email address during registration, causing excessive server load.

