CVE-2025-13947: Webkit: webkitgtk: remote user-assisted information disclosure via file drag-and-drop

Published Dec 3, 2025
·
Updated

A flaw was found in WebKitGTK. This vulnerability allows remote, user-assisted information disclosure that can reveal any file the user is permitted to read via abusing the file drag-and-drop mechanism where WebKitGTK does not verify that drag operations originate from outside the browser.

Other sources

This vulnerability allows a malicious website to read arbitrary local files by abusing the file drag-and-drop mechanism in WebKitGTK. The flaw exists because WebKitGTK does not verify that drag operations originate from outside the browser before granting access to the referenced file path. A crafted webpage can prompt the user to perform an innocent-looking drag action that unintentionally exposes sensitive file content accessible to the user account. This results in a remote, user-assisted information disclosure vulnerability that can reveal any file the user is permitted to read.

— Red Hat

Affected Software

9 affected componentsFixes available
WebKit WebKitGTK
debian/webkit2gtk
2.50.6-1~deb12u22.50.6-1~deb12u12.52.6-1~deb13u12.54.0-1~deb13u32.52.6-12.54.2-2
debian/wpewebkit<=2.38.6-1, <=2.48.3-1
2.54.2-1
debian/webkit2gtk<2.50.3-1~deb12u1
2.50.3-1~deb12u1
debian/webkit2gtk<2.50.3-1~deb13u1
2.50.3-1~deb13u1
debian/webkit2gtk<2.50.3-1
2.50.3-1
debian/wpewebkit*
debian/wpewebkit*
debian/wpewebkit<2.50.3-1
2.50.3-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.50.6-1~deb12u2Fixed in 2.50.6-1~deb12u1Fixed in 2.52.6-1~deb13u1Fixed in 2.54.0-1~deb13u3Fixed in 2.52.6-1Fixed in 2.54.2-2
  2. Upgrade

    Upgrade debian/wpewebkit to a version that resolves this vulnerability.

    Fixed in 2.54.2-1
  3. Upgrade

    Upgrade debian/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.50.3-1~deb12u1
  4. Upgrade

    Upgrade debian/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.50.3-1~deb13u1
  5. Upgrade

    Upgrade debian/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.50.3-1
  6. Upgrade

    Upgrade debian/wpewebkit to a version that resolves this vulnerability.

    Fixed in 2.50.3-1

Event History

Dec 3, 2025
CVE Published
via Ubuntu·12:00 AM
Data Sourced
via Ubuntu·12:00 AM
RemedyDescriptionSeverityAffected Software
Data Sourced
via Red Hat·09:07 AM
DescriptionSeverityAffected Software
CVE Published
via MITRE·09:45 AM
Data Sourced
via MITRE·09:45 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·10:15 AM
DescriptionSeverityWeakness
Data Sourced
via OSV·10:15 AM
Affected Software
Aug 7, 2026
Exploit Published
via GitHub·11:20 PM

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2025-13947?

CVE-2025-13947 is categorized as a moderate severity vulnerability.

2

What types of systems are affected by CVE-2025-13947?

CVE-2025-13947 affects WebKitGTK running on various systems that utilize its web rendering capabilities.

3

How do I fix CVE-2025-13947?

To fix CVE-2025-13947, update to the latest available version of WebKitGTK that addresses this vulnerability.

4

Can CVE-2025-13947 be exploited remotely?

Yes, CVE-2025-13947 can be exploited remotely if a user is tricked into performing specific actions.

5

What is the main risk associated with CVE-2025-13947?

The main risk of CVE-2025-13947 is the potential for information disclosure, revealing files to an attacker.

Contact

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