CVE-2026-47906 Overview
CVE-2026-47906 affects Adobe Dreamweaver Desktop versions 21.7 and earlier. The vulnerability stems from a dependency on a vulnerable third-party component [CWE-1395] that enables arbitrary code execution in the context of the current user. Exploitation requires user interaction, specifically opening a malicious file crafted by an attacker.
The issue carries a scope change, meaning successful exploitation can impact resources beyond the vulnerable component's security authority. Adobe documented the flaw in security advisory APSB26-62.
Critical Impact
Attackers who convince a user to open a malicious file can execute arbitrary code with the privileges of the current user, potentially leading to full workstation compromise.
Affected Products
- Adobe Dreamweaver Desktop 21.7
- Adobe Dreamweaver Desktop versions earlier than 21.7
- Installations on supported Windows and macOS platforms
Discovery Timeline
- 2026-06-09 - CVE-2026-47906 published to NVD
- 2026-06-10 - Last updated in NVD database
Technical Details for CVE-2026-47906
Vulnerability Analysis
Dreamweaver Desktop bundles a third-party component containing a known vulnerability. When Dreamweaver processes a malicious file, the vulnerable component handles the input and triggers arbitrary code execution in the user's context.
The attack vector is local and requires user interaction. An attacker must deliver the malicious file through phishing, web download, or removable media, and convince the user to open it inside Dreamweaver. The changed scope indicates the exploit can affect components or resources outside the immediate Dreamweaver process boundary.
Because execution occurs as the current user, the resulting code runs with whatever permissions that account holds. On developer or designer workstations, this often includes access to source repositories, deployment credentials, and cloud tokens.
Root Cause
The root cause is the inclusion of a vulnerable third-party library or component within the Dreamweaver Desktop distribution. Adobe has not disclosed the specific component name in the public advisory. The flaw is not in Adobe-authored code paths but in dependency code that Dreamweaver invokes during file parsing or processing.
Attack Vector
Attackers craft a malicious project file, template, or asset that Dreamweaver opens. When the vulnerable third-party component parses the file, the embedded payload triggers code execution. Common delivery methods include:
- Email attachments disguised as web design assets or templates
- Compromised template repositories or marketplaces
- Supply-chain insertion into shared project archives
No authentication or network access is required. The attacker only needs the victim to open the file in a vulnerable Dreamweaver build.
Adobe has not released public proof-of-concept code. Technical details are described in the Adobe Security Advisory APSB26-62.
Detection Methods for CVE-2026-47906
Indicators of Compromise
- Dreamweaver process (Dreamweaver.exe on Windows, Adobe Dreamweaver on macOS) spawning unexpected child processes such as cmd.exe, powershell.exe, bash, or osascript
- Outbound network connections initiated by Dreamweaver to unfamiliar domains immediately after a file open event
- New persistence artifacts (scheduled tasks, LaunchAgents, registry Run keys) created shortly after Dreamweaver activity
Detection Strategies
- Monitor parent-child process relationships where Dreamweaver is the parent of shell interpreters or scripting engines
- Hunt for file writes by Dreamweaver to autorun locations or user profile script directories
- Inspect recently opened Dreamweaver project files (.dwt, .dwr, .ste) received from external sources
Monitoring Recommendations
- Enable command-line argument logging on endpoints to capture child process invocations from Dreamweaver
- Correlate file open telemetry with subsequent process and network events using EDR or SIEM rules
- Alert on Dreamweaver versions reported in asset inventory that remain at 21.7 or earlier
How to Mitigate CVE-2026-47906
Immediate Actions Required
- Inventory all endpoints running Adobe Dreamweaver Desktop and identify versions 21.7 and earlier
- Apply the fixed version published in Adobe advisory APSB26-62 as soon as it is available in your update channel
- Instruct users to avoid opening Dreamweaver project files, templates, or assets received from untrusted sources
Patch Information
Adobe published remediation guidance in Adobe Security Advisory APSB26-62. Administrators should deploy the patched Dreamweaver Desktop build across all affected workstations. Verify successful update by checking the application's About dialog or via software inventory tooling.
Workarounds
- Restrict Dreamweaver use to a controlled subset of users until patches are deployed
- Block inbound email attachments with Dreamweaver-associated file extensions at the mail gateway
- Enforce application allowlisting to prevent Dreamweaver from spawning command interpreters or scripting hosts
# Configuration example - identify Dreamweaver installations on Windows endpoints
Get-WmiObject -Class Win32_Product | Where-Object { $_.Name -like "*Dreamweaver*" } | Select-Object Name, Version, InstallDate
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
