CVE-2026-40039

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 v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

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

Configurations

No configuration.

History

13 Apr 2026, 19:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-13 19:16

Updated : 2026-04-17 15:28

NVD link : CVE-2026-40039

Mitre link : CVE-2026-40039

CVE.ORG link : CVE-2026-40039

JSON object : View

Products Affected

No product.

CWE

CWE-305

Authentication Bypass by Primary Weakness

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