Zentao
CVE-2023-49394
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V3 - Web Frontend Security Redirect URL validation
MITRE ATT&CK
1 technique across 1 tactic: Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 6.1 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.20%. |
| Exploit ScenarioDerived | A remote attacker could redirect users to malicious websites via URL manipulation by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAIv1 – Mar 28, 2026
Zentao versions 4.1.3 and before has a URL redirect vulnerability, which prevents the system from functioning properly. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Earlier versions of this analysis (1)
Zentao versions 4.1.3 and before has a URL redirect vulnerability, which prevents the system from functioning properly.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate redirect destinations against an allowlist, avoid using user input in redirect URLs.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Open Redirect (CWE-601), which allows attackers to redirect users to malicious websites via URL manipulation. Zentao versions 4.1.3 and before has a URL redirect vulnerability, which prevents the system from functioning properly. Affected products include: Easycorp Zentao.
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
Zentao versions 4.1.3 and before has a URL redirect vulnerability, which prevents the system from functioning properly.
Executive ViewAI
Organizations using Zentao versions 4.1.3 and before should be aware of moderate risk from CVE-2023-49394 rated CVSS 6.1. Exploitation could compromise the security of affected deployments. Proof-of-concept code is publicly available. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Affected Products (CPE)CVE.org
Zentao v18.0 to v18.10 was discovered to contain a remote code execution (RCE) vulnerability via the checkConnection met
An arbitrary file upload vulnerability in /upgrade/control.php of ZenTao Community Edition v18.10, ZenTao Biz v8.10, and
ZenTao Biz version 4.1.3 and before is vulnerable to Cross Site Request Forgery (CSRF). Rated high severity (CVSS 8.8),
An issue in ZenTao Community Edition v.18.6 and before, ZenTao Biz v.8.6 and before, ZenTao Max v.4.7 and before allows
Zentao Demo15 is vulnerable to Directory Traversal. Rated high severity (CVSS 7.5), this vulnerability is remotely explo
Zentao Biz version 8.7 and before is vulnerable to Information Disclosure. Rated high severity (CVSS 7.5), this vulnerab
The Cron job tab in EasyCorp ZenTao 12.5.3 allows remote attackers (who have admin access) to execute arbitrary code by
A vulnerability classified as problematic was found in ZenTao PMS 18.8. Rated medium severity (CVSS 6.1), this vulnerabi
ZenTao Biz version 4.1.3 and before has a Cross Site Scripting (XSS) vulnerability in the Version Library. Rated medium
ZenTao Enterprise Edition version 4.1.3 and before is vulnerable to Cross Site Scripting (XSS). Rated medium severity (C
A cross site scripting (XSS) issue in EasyCorp ZenTao 12.5.3 allows remote attackers to execute arbitrary web script via
Path traversal in ZenTao's editor component (versions up to 21.7.8) allows authenticated attackers to manipulate the fil
Exploit-DB