{"id":"CVE-2026-78145","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-78145","generatedAt":"2026-10-28T08:10:47.174Z","title":"A vulnerability has been found in CTFd up to 3.8.4.","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.","published":"2026-08-23T23:16:46.000Z","lastModified":"2026-10-14T13:10:00.000Z","status":"Deferred","sourceIdentifier":"cna@vuldb.com","cvss":{"version":"4.0","score":2.1,"severity":"LOW","vector":"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/M"},"cwe":["CWE-601"],"affected":[],"epss":{"score":0.00557,"percentile":0.46255,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.56%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/CTFd/CTFd/","source":"cna@vuldb.com"},{"url":"https://github.com/CTFd/CTFd/commit/5d8515842fd1ab2c3a9f2dde9ffca907aa334ea9","source":"cna@vuldb.com"},{"url":"https://github.com/CTFd/CTFd/pull/3026","source":"cna@vuldb.com"},{"url":"https://github.com/CTFd/CTFd/releases/tag/3.8.4","source":"cna@vuldb.com"},{"url":"https://mblunt.dev/writeups/ctfd-open-redirect/","source":"cna@vuldb.com"},{"url":"https://vuldb.com/cve/CVE-2026-78145","source":"cna@vuldb.com"},{"url":"https://vuldb.com/submit/882469","source":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/394533","source":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/394533/cti","source":"cna@vuldb.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-78145","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}