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IceWarp Mail Server ≤11.4.0 - Open Redirect Detection

🗓️ 28 Jul 2026 11:27:38Reported by KittySploitType 
kittysploit
 kittysploit
🔗 kittysploit.com👁 4 Views

Open redirect in IceWarp Mail Server allows redirection to arbitrary external domains.

Related
Refs
Code
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2025-40630
16 May 202511:34
–circl
cnnvd
CNNVD
IceWarp Mail Server 输入验证错误漏洞
16 May 202500:00
–cnnvd
cnvd
CNVD
IceWarp Mail Server Input Validation Error Vulnerability
22 May 202500:00
–cnvd
cve
CVE
CVE-2025-40630
16 May 202511:08
–cve
cvelist
Cvelist
CVE-2025-40630 Open redirection vulnerability in IceWarp Mail Server
16 May 202511:08
–cvelist
euvd
EUVD
EUVD-2025-15436
3 Oct 202520:07
–euvd
nuclei
Nuclei
IceWarp Mail Server ≤11.4.0 - Open Redirect
15 Oct 202602:05
–nuclei
nvd
NVD
CVE-2025-40630
16 May 202511:15
–nvd
osv
OSV
CVE-2025-40630
16 May 202511:15
–osv
ptsecurity
Positive Technologies
PT-2025-21633 · Icewarp · Icewarp Mail Server
16 May 202500:00
–ptsecurity
Rows per page
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""IceWarp Mail Server version 11."""

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


class Module(Scanner, Http_client):
    __info__ = {
        'name': 'IceWarp Mail Server ≤11.4.0 - Open Redirect Detection',
        'description': 'IceWarp Mail Server version 11.4.0 and below contains an open redirect vulnerability that allows attackers to redirect users to arbitrary external domains through malicious URLs.',
        'author': ['KittySploit Team'],
        'severity': 'medium',
        'tags': ['web', 'scanner', 'cve', 'cve2025', 'icewarp', 'redirect', 'open-redirect', '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://nvd.nist.gov/vuln/detail/CVE-2025-40630',
            'https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-icewarp-mail-server',
        ],
        'cve': 'CVE-2025-40630',
    }

    def run(self):
        r = self.http_request(method="GET", path='/%2f%5c%2foast.pro%2f..', allow_redirects=False)
        if not r or r.status_code != 302:
            return False
        headers = "\n".join(f"{k}: {v}" for k, v in r.headers.items())
        header_regexes = ('(?m)^(?:Location\\s*?:\\s*?)(?:https?://|//)?(?:[a-zA-Z0-9\\-_\\.@]*)oast\\.pro.*$',)
        if (any(re.search(rx, headers, 0) for rx in header_regexes)):
            self.set_info(
                severity='medium',
                reason="IceWarp Mail Server ≤11.4.0 - Open Redirect detected",
                path='/%2f%5c%2foast.pro%2f..',
            )
            return True
        return False

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28 Jul 2026 11:27Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.16.1
CVSS 45.1
EPSS0.00496
SSVC
4