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Pachno 1.0.6 (return_to) Open Redirection
| Reporter | Title | Published | Views | Family All 10 |
|---|---|---|---|---|
 | CVE-2026-40039 | 13 Apr 202618:10 | – | attackerkb |
 | CVE-2026-40039 | 13 Apr 202621:03 | – | circl |
 | Pachno 安全漏洞 | 13 Apr 202600:00 | – | cnnvd |
 | CVE-2026-40039 | 13 Apr 202618:10 | – | cve |
 | CVE-2026-40039 Pachno 1.0.6 Open Redirection via return_to Parameter | 13 Apr 202618:10 | – | cvelist |
 | EUVD-2026-22043 | 13 Apr 202621:30 | – | euvd |
 | CVE-2026-40039 | 13 Apr 202619:16 | – | nvd |
 | PT-2026-32493 | 13 Apr 202600:00 | – | ptsecurity |
 | CVE-2026-40039 | 16 Apr 202619:22 | – | redhatcve |
 | CVE-2026-40039 Pachno 1.0.6 Open Redirection via return_to Parameter | 13 Apr 202618:10 | – | vulnrichment |
10
<html><body><p>Pachno 1.0.6 (return_to) Open Redirection
Vendor: Daniel André Eikeland
Product web page: https://github.com/pachno/pachno
Affected version: 1.0.6
Summary: Pachno is an open-source collaboration platform (formerly known as The Bug Genie)
designed for team project management, issue tracking, and documentation. It offers a module-based,
customizable environment for software development and team workflows, distributed under the
Mozilla Public License.
Desc: Input passed via the return_to GET/POST parameter to the login endpoint is not properly
verified before being used to redirect users. The _getLoginForwardUrl() helper applies htmlentities()
to the value which is intended for HTML output encoding and does not validate URL schemes or hosts,
and then issues a Location header with the unmodified URL. This can be exploited to redirect a
user to an arbitrary external website and conduct phishing attacks.
Tested on: GNU/Linux
Apache2
PHP/7.4
MySQL/5.7 (MariaDB)
Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
@zeroscience
Advisory ID: ZSL-2026-5981
Advisory URL: https://www.zeroscience.mk/#/advisories/ZSL-2026-5981
06.04.2026
--
https://127.0.0.1/login?return_to=https://www.zeroscience.mk/pachno_relogin.phtml
</p></body></html>Data
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12 Apr 2026 00:00Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.16.5
CVSS 47.1
EPSS0.00012
SSVC