Rengine
CVE-2023-50094
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization OS command sanitization, avoid shell exec
MITRE ATT&CK
2 techniques across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 8.8 (HIGH). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 88.56%. |
| Exploit ScenarioDerived | A remote attacker could execute arbitrary operating system commands on the host by sending crafted requests to the affected application. |
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Alert meAnalysisAIv1 – Mar 28, 2026
reNgine before 2.1.2 allows OS Command Injection if an adversary has a valid session ID. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 88.6%.
Earlier versions of this analysis (1)
Authenticated OS command injection in reNgine reconnaissance framework executes attacker commands as root via the WAF detector endpoint.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.
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 OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. reNgine before 2.1.2 allows OS Command Injection if an adversary has a valid session ID. The attack places shell metacharacters in an api/tools/waf_detector/?url= string. The commands are executed as root via subprocess.check_output. Affected products include: Yogeshojha Rengine. Version information: before 2.1.2.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
reNgine before 2.1.2 allows OS Command Injection if an adversary has a valid session ID. The attack places shell metacharacters in an api/tools/waf_detector/?url= string. The commands are executed as root via subprocess.check_output.
Executive ViewAI
Organizations using reNgine before 2.1.2 face significant risk from CVE-2023-50094, a OS command injection vulnerability rated CVSS 8.8. Successful exploitation could allow attackers to execute arbitrary code or commands on affected systems, potentially leading to full system compromise. With an EPSS score of 89%, this vulnerability faces very high likelihood of exploitation. Organizations should apply vendor updates when available and consider compensating controls in the interim.
Apply vendor patch. If immediate patching is not feasible: (1) Deploy WAF rules to block injection patterns; (2) Restrict network access to affected components; (3) Enable enhanced logging for suspicious activity.
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
Attack Technique
OS command injection occurs when an application passes unsanitized user input directly into system shell commands.
Affected Products (CPE)CVE.org
Rengine v1.3.0 was discovered to contain a command injection vulnerability via the scan engine function. Rated critical
OS Command Injection in GitHub repository yogeshojha/rengine prior to 1.2.0. Rated critical severity (CVSS 9.8), this vu
Rengine v1.0.2 was discovered to contain a remote code execution (RCE) vulnerability via the yaml configuration function
reNgine through 0.5 relies on a predictable directory name. Rated critical severity (CVSS 9.8), this vulnerability is re
reNgine is an automated reconnaissance framework for web applications. Rated medium severity (CVSS 5.4), this vulnerabil
reNgine through 2.2.0 allows any authenticated user, including low-privilege Auditor accounts, to read bundled recon-too
Authenticated command injection in reNgine up to 2.2.0 allows a low-privileged user to execute arbitrary OS commands on
reNgine is an automated reconnaissance framework for web applications. Rated high severity (CVSS 8.8), this vulnerabilit
reNgine is an automated reconnaissance framework for web applications. Rated high severity (CVSS 7.4), this vulnerabilit
reNgine is an automated reconnaissance framework for web applications. Rated medium severity (CVSS 5.3), this vulnerabil
reNgine is an automated reconnaissance framework for web applications. Rated high severity (CVSS 8.7), this vulnerabilit
reNgine is an automated reconnaissance framework for web applications. Rated high severity (CVSS 7.1), this vulnerabilit
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