# CVE-2026-47909: Adobe Dreamweaver improper input validation arbitrary file read

Source: https://junglewise.ai/threats/cve-2026-47909-adobe-dreamweaver-improper-input-validation-arbitrary-file-read  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-09. Updated: 2026-06-09  
License: CC BY 4.0 with a link back

CVE-2026-47909 · Severity: medium · CVSS 6.3 · Published 2026-06-09

Adobe Dreamweaver, a popular web development application, is affected by a security flaw that could allow an attacker to read sensitive files on a user's computer. To exploit this, an attacker would need to trick a user into opening a specially crafted malicious file within the Dreamweaver application. This could result in the unauthorized exposure of private data or system configuration files.

Technologies: [Adobe Dreamweaver](https://junglewise.ai/threats/technologies/dreamweaver). Vendors: [Adobe](https://junglewise.ai/threats/vendors/adobe).

## Quick answers

**Is CVE-2026-47909 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-47909 being exploited in the wild.

**How severe is CVE-2026-47909?** Medium severity, with a CVSS score of 6.3, published 9 June 2026.

**Which products and versions are affected?** Adobe Dreamweaver 21.7 and earlier.

**Is there a fix for CVE-2026-47909?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-47909 attacked?** It is attacked with local access, in a network appliance.

**Am I affected by CVE-2026-47909?** Check whether you run Adobe Dreamweaver at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An Improper Input Validation vulnerability (CWE-20) exists in Adobe Dreamweaver Desktop versions 21.7 and earlier. The flaw allows for an arbitrary file system read when the application fails to properly validate input from a file opened by the user. An attacker can exploit this by crafting a malicious file that, when opened, leverages the changed scope (S:C) to access sensitive information outside of the application's intended directory constraints. This is a local attack vector requiring user interaction (UI:R) but no prior privileges (PR:N). Adobe has addressed this in security bulletin APSB26-62.

## Affected products

- Adobe Dreamweaver Desktop 21.7 and earlier

## Timeline

- 2026-06-09: disclosed
- 2026-06-09: advisory: Adobe security bulletin APSB26-62 published

## References

- [https://helpx.adobe.com/security/products/dreamweaver/apsb26-62.html](https://helpx.adobe.com/security/products/dreamweaver/apsb26-62.html)

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- [Adobe Dreamweaver incorrect authorization arbitrary file read](https://junglewise.ai/threats/cve-2026-47910-adobe-dreamweaver-incorrect-authorization-arbitrary-file-read)
- [Adobe Dreamweaver uninitialized pointer access in Desktop](https://junglewise.ai/threats/cve-2026-47908-adobe-dreamweaver-uninitialized-pointer-access-in-desktop)
- [Adobe Dreamweaver improper access control arbitrary file read](https://junglewise.ai/threats/cve-2026-47907-adobe-dreamweaver-improper-access-control-arbitrary-file-read)
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- [Adobe Dreamweaver Desktop incorrect authorization leading to code execution](https://junglewise.ai/threats/cve-2026-21274-adobe-dreamweaver-desktop-incorrect-authorization-leading-to-code)