Adobe Dreamweaver Desktop up to 21.6 File input validation

Summaryinfo

A vulnerability classified as critical was found in Adobe Dreamweaver Desktop up to 21.6. Affected by this issue is some unknown functionality of the component File Handler. Executing a manipulation can lead to input validation. This vulnerability appears as CVE-2026-21268. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in Adobe Dreamweaver Desktop up to 21.6. This vulnerability affects an unknown function of the component File Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Dreamweaver Desktop versions 21.6 and earlier are affected by an Improper Input Validation vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file and scope is changed.

The advisory is available at helpx.adobe.com. This vulnerability was named CVE-2026-21268 since 12/12/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 01/14/2026).

The vulnerability scanner Nessus provides a plugin with the ID 283674 (Adobe Dreamweaver 21.0 < 21.7 Multiple Vulnerabilities (APSB26-01) (macOS)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (283674). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• Adobe

Name

• Dreamweaver Desktop

Version

• 21.0
• 21.1
• 21.2
• 21.3
• 21.4
• 21.5
• 21.6

License

• commercial

Website

• Vendor: https://www.adobe.com/

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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