July 7, 2026 — CISA has added CVE-2026-48282 to the Known Exploited Vulnerabilities (KEV) catalog. For SOC managers and IR teams, this is the signal we dread: the transition from theoretical risk to active in-the-wild exploitation.
This advisory is not a routine patch notice. It confirms that threat actors are currently leveraging a path traversal vulnerability in Adobe ColdFusion to achieve arbitrary code execution (ACE). Given ColdFusion's prevalence in enterprise legacy stacks and its privileged access to internal databases, this is a critical pivot point for incident responders. We are seeing a direct path from a web-facing vector to full server compromise.
Technical Analysis
Affected Product: Adobe ColdFusion CVE Identifier: CVE-2026-48282 CVSS Score: Critical (Estimated based on impact: Path Traversal -> ACE)
The Vulnerability Mechanics
CVE-2026-48282 is a path traversal vulnerability. In the context of an application server like ColdFusion, path traversal is rarely just about reading files—it is a stepping stone to remote code execution (RCE).
The attack chain typically follows this pattern:
- Initial Access: The attacker sends a specially crafted HTTP request to the ColdFusion server containing directory traversal sequences (e.g.,
../or encoded equivalents). - Exploitation: The application fails to properly sanitize the input, allowing the attacker to break out of the web root.
- Execution: By traversing the file system, the attacker can write a malicious file (such as a webshell) to a directory executable by the server, or overwrite configuration files to achieve arbitrary code execution in the context of the ColdFusion service user.
Exploitation Status
- CISA KEV: Added 2026-07-07
- Status: Confirmed Active Exploitation
- Risk: High. This is not a proof-of-concept; active scanning and exploitation campaigns are underway.
Detection & Response
Given the active exploitation status, immediate threat hunting is required. We need to identify successful path traversal attempts and, more critically, the subsequent execution of unauthorized code.
SIGMA Rules
The following rules target two distinct phases of the attack: the initial web exploit (path traversal) and the resultant process execution (RCE).
---
title: Potential Adobe ColdFusion Path Traversal Exploit Attempt
id: a1b2c3d4-5678-90ab-cdef-1234567890ab
status: experimental
description: Detects potential path traversal attempts against Adobe ColdFusion servers often associated with CVE-2026-48282.
references:
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog
author: Security Arsenal
date: 2026/07/07
tags:
- attack.initial_access
- attack.t1190
- cve.2026.48282
logsource:
category: webserver
product: apache
# Note: Adjust logsource product to iis or nginx if applicable to your env
detection:
selection_uri:
c-uri|contains:
- '../'
- '..\'
- '%2e%2e'
c-uri|endswith:
- '.cfm'
- '.cfc'
selection_ua:
c-useragent|contains:
- 'sqlmap'
- 'scanner'
- 'nikto'
condition: 1 of selection*
falsepositives:
- Legitimate developer testing (rare in production)
level: high
---
title: Adobe ColdFusion Service Spawning Shell
id: b2c3d4e5-6789-01ab-cdef-2345678901bc
status: experimental
description: Detects the ColdFusion service process spawning command shells (cmd.exe, powershell.exe), a strong indicator of successful RCE.
references:
- https://attack.mitre.org/techniques/T1059/
author: Security Arsenal
date: 2026/07/07
tags:
- attack.execution
- attack.t1059.001
- attack.t1059.003
- cve.2026.48282
logsource:
category: process_creation
product: windows
detection:
selection_parent:
ParentImage|endswith:
- '\cfusion.exe'
- '\jrunsvc.exe'
- '\java.exe' # ColdFusion runs on Java, context needed
selection_child:
Image|endswith:
- '\cmd.exe'
- '\powershell.exe'
- '\pwsh.exe'
filter_legit:
CommandLine|contains: 'coldfusion' # Allow specific internal ColdFusion scripts calling cmd
condition: selection_parent and selection_child and not filter_legit
falsepositives:
- Administrative maintenance
level: critical
KQL (Microsoft Sentinel / Defender)
Use this query to hunt for web server logs indicating path traversal anomalies correlated with ColdFusion file extensions.
kqln // Hunt for path traversal patterns in web logs targeting ColdFusion
Syslog
| where Facility in ('WebServer', 'HTTP')
| extend RenderedDescription = iff(SyslogMessage contains "msg=", extract_all(@"msg=""(.*?)""", SyslogMessage)[0][0], SyslogMessage)
| parse RenderedDescription with * "method=" Method " uri=" Uri "" *
| where Uri has_any (".cfm", ".cfc")
| where Uri has ("../") or Uri has ("..\\") or Uri has ("%2e%2e")
| project TimeGenerated, ComputerIP, ProcessName, Method, Uri, SyslogMessage
| sort by TimeGenerated desc
Velociraptor VQL
This artifact hunts for recently created ColdFusion Markup Language (CFM) files which often indicates webshell deployment.
-- Hunt for recently created .cfm or .cfc files in web roots
SELECT FullPath, Mtime, Atime, Size, Mode
FROM glob(globs="/*/wwwroot/**/*.cfm")
WHERE Mtime > now() - 24h
OR Atime > now() - 24h
UNION
SELECT FullPath, Mtime, Atime, Size, Mode
FROM glob(globs="/*/wwwroot/**/*.cfc")
WHERE Mtime > now() - 24h
OR Atime > now() - 24h
Remediation Script (PowerShell)
This script scans for common webshell patterns in ColdFusion web directories. If exploitation is confirmed or suspected, immediate isolation is required before patching.
# Emergency Webshell Scanner for ColdFusion Environments
# Run with elevated permissions
Write-Host "[+] Starting scan for suspicious .cfm/.cfc files..." -ForegroundColor Cyan
$WebRoots = @(
"C:\ColdFusion\cfusion\wwwroot",
"C:\inetpub\wwwroot",
"D:\websites"
)
$SuspiciousStrings = @(
"evaluate",
"Invoke-Expression",
"System.Diagnostics.Process",
"Runtime.getRuntime()",
"pagecontext"
)
foreach ($Root in $WebRoots) {
if (Test-Path $Root) {
Write-Host "[!] Scanning: $Root" -ForegroundColor Yellow
Get-ChildItem -Path $Root -Recurse -Include *.cfm, *.cfc -ErrorAction SilentlyContinue |
Where-Object { $_.LastWriteTime -gt (Get-Date).AddDays(-7) } |
ForEach-Object {
$Content = Get-Content $_.FullName -Raw -ErrorAction SilentlyContinue
if ($Content) {
foreach ($Pattern in $SuspiciousStrings) {
if ($Content -match $Pattern) {
Write-Host "[!!!] POTENTIAL WEBSHELL FOUND: $($_.FullName)" -ForegroundColor Red
# Uncomment to move file for analysis
# Move-Item $_.FullName "C:\Quarantine\$($_.Name)"
}
}
}
}
}
}
Write-Host "[+] Scan complete." -ForegroundColor Green
Remediation
- Patch Immediately: Apply the vendor-supplied security updates for Adobe ColdFusion as directed in the official security bulletin.
- CISA BOD 26-04 Compliance: Per Binding Operational Directive (BOD) 26-04, Federal Civilian Executive Branch (FCEB) agencies have a defined deadline to patch/remediate. Private sector organizations should treat this timeline as the maximum acceptable exposure window.
- Restrict Internet Exposure: If the patch cannot be applied immediately (e.g., due to compatibility testing), remove the ColdFusion server from the internet or place it behind a zero-trust network access (ZTNA) gateway with strict allowlisting.
- Forensic Triage: If your systems were exposed during the active exploitation window, assume compromise. Review logs for successful path traversal attempts and process execution. CISA mandates specific forensic triage requirements—refer to the official CISA advisory for the full checklist.
Related Resources
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