CVE-2026-40039

HIGH EPSS 25.6%

Published Apr 13, 20262mo ago · Modified Jun 17, 20262w ago

7.1 CVSS 4.0

High

Published Apr 13, 2026 2mo ago

Last Modified Jun 17, 2026 2w ago

Description

Pachno 1.0.6 contains an open redirection vulnerability that allows attackers to redirect users to arbitrary external websites by manipulating the return_to parameter. Attackers can craft malicious login URLs with unvalidated return_to values to conduct phishing attacks and steal user credentials.

CVSS Details

Base Score

7.1

Exploitability

—

Impact

—

Vector string

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/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

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction P

Scope X

Threat Intelligence

EPSS Exploit Probability

25.6% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-305

References 2

vulncheck.com https://www.vulncheck.com/advisories/pachno-open-redirection-via-return-to-parameter
zeroscience.mk https://www.zeroscience.mk/en/vulnerabilities/ZSL-2026-5981.php

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.