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CVE-2026-78145

CTFd __init__.py _is_safe_url redirect

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
Herstellern/a
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Produkt CTFd
Version 3.8.0
Status affected
Version 3.8.1
Status affected
Version 3.8.2
Status affected
Version 3.8.3
Status affected
Version 3.8.4
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.42% 0.347
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
cna@vuldb.com 2.1 0 0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
cna@vuldb.com 4.3 2.8 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
cna@vuldb.com 5 10 2.9
AV:N/AC:L/Au:N/C:N/I:P/A:N
CWE-601 URL Redirection to Untrusted Site ('Open Redirect')

The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.

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