CVE-2026-48315 Overview
CVE-2026-48315 is an Improper Input Validation vulnerability [CWE-20] in Adobe ColdFusion versions 2025.9, 2023.20, and earlier. The flaw enables arbitrary code execution in the context of the current user when a victim opens a malicious file. Successful exploitation can allow attackers to inject malicious scripts, gain elevated access, or take control of a victim's account or session. The vulnerability has a changed scope, meaning exploitation impacts resources beyond the vulnerable component. Adobe published the associated security bulletin APSB26-68 addressing this issue.
Critical Impact
Attackers can execute arbitrary code within the current user's context by tricking a victim into opening a crafted file, potentially compromising account integrity and confidentiality across trust boundaries.
Affected Products
- Adobe ColdFusion 2025 (through Update 9)
- Adobe ColdFusion 2023 (through Update 20)
- Earlier ColdFusion releases within these branches
Discovery Timeline
- 2026-06-30 - CVE-2026-48315 published to NVD
- 2026-07-01 - Last updated in NVD database
Technical Details for CVE-2026-48315
Vulnerability Analysis
Adobe ColdFusion fails to properly validate input handled by the application when processing certain files. When a victim opens a malicious file crafted by an attacker, the input validation gap allows attacker-controlled content to be interpreted as executable code or script within the current user context. Because the vulnerability's scope is changed, exploitation crosses a security boundary and can affect resources outside the initially vulnerable component, such as browser sessions or authenticated web contexts. The result is arbitrary code execution with the privileges of the interacting user, enabling script injection, session hijacking, or unauthorized actions on behalf of the victim.
Root Cause
The root cause is improper input validation [CWE-20] in a ColdFusion component that processes file-based input. The application does not sufficiently sanitize or constrain data supplied through the malicious file before it reaches a downstream execution or rendering context. Adobe's advisory APSB26-68 documents the corrective changes.
Attack Vector
The attack requires user interaction. An attacker delivers a specially crafted file — typically via email, web download, or shared workspace — and social-engineers the victim into opening it. Once opened, the malicious payload triggers the input validation flaw and executes attacker-controlled logic in the user's session, potentially escalating access or manipulating web content.
No verified public proof-of-concept is available. See the Adobe ColdFusion Security Advisory for further technical context.
Detection Methods for CVE-2026-48315
Indicators of Compromise
- Unexpected ColdFusion process spawning shell interpreters, cmd.exe, powershell.exe, or /bin/sh following user interaction with a delivered file.
- Anomalous outbound network connections initiated by ColdFusion-associated processes shortly after a file open event.
- New or modified .cfm, .cfc, or .jsp files under ColdFusion web roots without a corresponding deployment change.
- Suspicious script content or unexpected session tokens appearing in ColdFusion application logs.
Detection Strategies
- Monitor ColdFusion server and administrator workstation telemetry for child processes spawned from ColdFusion binaries or Java runtimes.
- Correlate file-open events on administrative endpoints with subsequent ColdFusion configuration or file-system changes.
- Inspect ColdFusion administrator and application logs for injection patterns, encoded payloads, or unusual template rendering errors.
Monitoring Recommendations
- Enable verbose logging on ColdFusion instances and forward logs to a centralized analytics platform for correlation.
- Track integrity of ColdFusion installation directories, application source, and configuration files using file integrity monitoring.
- Alert on inbound delivery of ColdFusion-related file types from untrusted sources to privileged users.
How to Mitigate CVE-2026-48315
Immediate Actions Required
- Apply the updates referenced in Adobe security bulletin APSB26-68 to all ColdFusion 2025 and 2023 installations.
- Inventory ColdFusion deployments to confirm all instances are above 2025.9 and 2023.20 fixed baselines.
- Restrict which users can open ColdFusion-related files on administrative endpoints and enforce least privilege.
- Educate administrators and developers about the user-interaction requirement and the risk of opening untrusted files.
Patch Information
Adobe released fixes in the security bulletin APSB26-68. Administrators should upgrade ColdFusion 2025 and ColdFusion 2023 to the versions specified in the Adobe ColdFusion Security Advisory. Apply the patch across development, staging, and production environments, and restart services to complete remediation.
Workarounds
- Block delivery of ColdFusion project files and other high-risk attachments from untrusted senders at the email gateway.
- Isolate ColdFusion administrator workstations from general-purpose browsing and email until patching is complete.
- Enforce application allow-listing to prevent unexpected child processes from ColdFusion or associated Java runtimes.
# Verify installed ColdFusion version on Linux
cat /opt/coldfusion2025/cfusion/lib/version.properties
cat /opt/coldfusion2023/cfusion/lib/version.properties
# Windows: check version file
type "C:\ColdFusion2025\cfusion\lib\version.properties"
type "C:\ColdFusion2023\cfusion\lib\version.properties"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
