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CVE-2026-40039

Pachno 1.0.6 Open Redirection via return_to Parameter

MEDIUM
6.5
CVSS Score
Published: April 13, 2026 at 06:10 PM UTC
Updated: October 26, 2026 at 09:10 PM UTC
1 product affected across 1 vendorPachno

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-305

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