CVE-2026-66414: 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

mediumCVSS 6.1CVE-2026-66414

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.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: medium — CVSS 6.1
Published: 2026-07-30
Last updated: 2026-07-31
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-66414

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-664140.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-66414	coverage & exploitation status	NVD · CVE.org

Recent advisories for Leantime

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

highCVE-2026-66416: Leantime 3.6.2 contains a cross-site request forgery vulnerability that allows unauthenticated…nvd · 2026-07-30
highCVE-2026-66415: Leantime 3.6.2 contains a server-side request forgery and local file inclusion vulnerability t…nvd · 2026-07-30
mediumCVE-2026-66412: Leantime 3.6.2 and prior contains a broken access control vulnerability that allows authentica…nvd · 2026-07-27
mediumCVE-2026-15510: A vulnerability was found in Leantime up to 3.8.0. Affected is the function Setting::saveSetti…nvd · 2026-07-12
mediumCVE-2026-15509: A vulnerability has been found in Leantime up to 3.8.0. This impacts the function editUser/add…nvd · 2026-07-12
highCVE-2026-59713: Leantime contains an OIDC login CSRF vulnerability in the verifyState() method that unconditio…nvd · 2026-07-06

CVE-2026-66414: 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

Details

Exploitation outlook

Referenced CVEs

Recent advisories for Leantime

More from NVD Recent CVEs