Vulnerability Description
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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/CTFd/CTFd/
- https://github.com/CTFd/CTFd/commit/5d8515842fd1ab2c3a9f2dde9ffca907aa334ea9
- https://github.com/CTFd/CTFd/pull/3026
- https://github.com/CTFd/CTFd/releases/tag/3.8.4
- https://mblunt.dev/writeups/ctfd-open-redirect/
- https://vuldb.com/cve/CVE-2026-78145
- https://vuldb.com/submit/882469
- https://vuldb.com/vuln/394533
- https://vuldb.com/vuln/394533/cti
FAQ
What is CVE-2026-78145?
CVE-2026-78145 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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 ope...
How severe is CVE-2026-78145?
CVE-2026-78145 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-78145?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.