Bug 2418576 (CVE-2025-13947)

Summary:	CVE-2025-13947 webkit: WebKitGTK: Remote user-assisted information disclosure via file drag-and-drop
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	iamleot+rhbugzilla
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	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.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2418579, 2418580, 2418581
Bug Blocks:

Description OSIDB Bzimport 2025-12-03 09:07:24 UTC

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.

Comment 2 Leonardo Taccari 2025-12-04 10:08:29 UTC

Are there any further details? Which versions are affected? Was it reported upstream?

Can you please add such details as references too when filling CVEs?

Thanks!

Comment 3 errata-xmlrpc 2025-12-08 01:48:14 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2025:22789 https://access.redhat.com/errata/RHSA-2025:22789

Comment 4 errata-xmlrpc 2025-12-08 01:53:02 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:22790 https://access.redhat.com/errata/RHSA-2025:22790

Comment 5 Leonardo Taccari 2025-12-08 12:00:55 UTC

(In reply to Leonardo Taccari from comment #2)
> Are there any further details? Which versions are affected? Was it reported
> upstream?
> 
> Can you please add such details as references too when filling CVEs?
> 
> Thanks!

JFTR, this is part of <https://webkitgtk.org/security/WSA-2025-0009.html> and it was fixed upstream in version 2.50.3.

It would be nice if upstream WSA can be added as a reference too.