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CVE-2026-66414

MediumPublished

Leantime Open Redirect in Login Controller via redirectUrl Parameter

Published: Jul 30, 2026
Updated: Aug 14, 2026
Assigning CNA: VulnCheck
Evidence observed: Aug 28, 2026

Primary CVSS

5.1/ 10Medium

nvd · CVSS 4.0

CVSS: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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS probability estimate

0.2%

Low · next 30 days

Percentile: 9.8%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

CVE-PoC-HubPoC
🛡️ CVE Proof-of-Concept Hub — 4 PUBLISHED CVEs · 5 under review (VulnCheck) · SuiteCRM batch withdrawn

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