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CVE-2026-66414

Leantime Open Redirect in Login Controller via redirectUrl Parameter

CVSS 4.0 5.1 MEDIUMCVSS 3.1 6.1 MEDIUMCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-66414

Published

Leantime 3.6.2 contains an open redirect vulnerability in the Login controller that allows unauthenticated attackers to redirect authenticated users to arbitrary external sites by manipulating the redirectUrl POST parameter. Attackers can craft a malicious login URL with a tampered redirectUrl value that bypasses FILTER_SANITIZE_URL validation to redirect victims to attacker-controlled sites for phishing or credential theft.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-66414

Published

Leantime

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Leantime",
                    "product": "Leantime",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThanOrEqual": "3.6.2"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON