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 manipulating the redirectUrl POST parameter.
Does this matter?
Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 4.0
- 5.1 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.20% probability · 10th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-601
- Source
- disclosure@vulncheck.com
References
- https://github.com/Leantime/leantime
- https://github.com/Leantime/leantime/pull/3658
- https://github.com/javokhir-sec/CVE-PoC-Hub/security/advisories/GHSA-wprg-q8m6-jhp9
- https://www.vulncheck.com/advisories/leantime-open-redirect-in-login-controller-via-redirecturl-parameter
- https://github.com/Leantime/leantime/pull/3658
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.