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CVE Record

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

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.

HighCVSS 7.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This flaw can let a malicious web page trick a user-assisted drag-and-drop action into exposing files the user can read. It does not allow code execution, but it can disclose sensitive local files if an affected WebKitGTK component is used to view hostile content.

Executive priority

Treat as high priority for desktop, kiosk, and embedded-browser environments where users access untrusted sites. It is less urgent than unauthenticated remote code execution, but potential disclosure of any user-readable file makes timely vendor patching and inventory validation important.

Technical view

CVE-2025-13947 is a WebKitGTK origin-validation flaw in drag-and-drop handling, mapped to CWE-346. WebKitGTK does not verify that drag operations originate outside the browser, enabling remote, user-assisted information disclosure. CVSS 3.1 is 7.4 with network attack vector, low complexity, no privileges, required user interaction, changed scope, and high confidentiality impact.

Likely exposure

Exposure is most likely on Linux systems and applications using affected WebKitGTK packages, especially Red Hat Enterprise Linux 7 ELS, RHEL 8 streams, and RHEL 9 streams listed in the source bundle. Inventory should focus on webkitgtk4 and webkit2gtk3 packages.

Exploitation context

The bundle does not show CISA KEV listing or cited active exploitation. Exploitation requires user interaction and a target using affected WebKitGTK to process untrusted web content, but the confidentiality impact is high because readable local files may be exposed.

Researcher notes

Evidence supports a user-assisted confidentiality issue, not integrity or availability impact. The source bundle marks many Red Hat streams affected but does not provide exploit details or complete fixed-version data. RHEL 6 status is listed as unknown, so do not infer exposure without vendor confirmation.

Mitigation direction

  • Identify systems with affected webkitgtk4 or webkit2gtk3 packages.
  • Review the applicable Red Hat RHSA advisory for your RHEL stream.
  • Apply vendor-provided WebKitGTK updates when available through supported channels.
  • Prioritize user-facing systems that browse or render untrusted web content.
  • Until updated, warn users against drag-and-drop interactions with untrusted pages.

Validation and detection

  • Check installed WebKitGTK package names and versions against the affected list.
  • Map each affected host to its RHEL product stream and RHSA advisory.
  • Confirm whether vendor updates are installed after remediation.
  • Review application inventory for embedded WebKitGTK use, not only standalone browsers.
  • Track Red Hat CVE status and WebKit bug updates for fixed-version clarity.
Prepared
Confidence
high
Sources
12

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-346: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2025-13947 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.4 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
5Timeline events
1ADP providers
15Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.4CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N2.84redhat

Vulnerability scoring details

Base CVSS 3.1 score

7.4High
CVSS 3.1 vector shape for CVE-2025-13947Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. Source timelineredhat

    Made public.

  2. Source timelineredhat

    Reported to Red Hat.

  3. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  4. CVE publishedCVE Program

    The CVE record was published.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
The WebKitGTK Teamwebkitgtkwebkitgtk, 0unaffected
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle Supportwebkitgtk4, 0:2.50.3-2.el7_9affected
Red HatRed Hat Enterprise Linux 8webkit2gtk3, 0:2.50.3-1.el8_10affected
Red HatRed Hat Enterprise Linux 8.2 Advanced Update Supportwebkit2gtk3, 0:2.50.3-2.el8_2affected
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportwebkit2gtk3, 0:2.50.3-2.el8_4affected
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onwebkit2gtk3, 0:2.50.3-2.el8_4affected
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportwebkit2gtk3, 0:2.50.3-2.el8_6affected
Red HatRed Hat Enterprise Linux 8.6 Telecommunications Update Servicewebkit2gtk3, 0:2.50.3-2.el8_6affected
Red HatRed Hat Enterprise Linux 8.6 Update Services for SAP Solutionswebkit2gtk3, 0:2.50.3-2.el8_6affected
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Servicewebkit2gtk3, 0:2.50.3-2.el8_8affected
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutionswebkit2gtk3, 0:2.50.3-2.el8_8affected
Red HatRed Hat Enterprise Linux 9webkit2gtk3, 0:2.50.3-1.el9_7affected
Red HatRed Hat Enterprise Linux 9.0 Update Services for SAP Solutionswebkit2gtk3, 0:2.50.3-1.el9_0affected
Red HatRed Hat Enterprise Linux 9.2 Update Services for SAP Solutionswebkit2gtk3, 0:2.50.3-1.el9_2affected
Red HatRed Hat Enterprise Linux 9.4 Extended Update Supportwebkit2gtk3, 0:2.50.3-1.el9_4affected
Red HatRed Hat Enterprise Linux 9.6 Extended Update Supportwebkit2gtk3, 0:2.50.3-1.el9_6affected
Red HatRed Hat Enterprise Linux 6webkitgtkunknown
Red HatRed Hat Enterprise Linux 7webkitgtk3affected
Weakness

CWE details

CWE-346

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-346 · source CWE mapping

Origin Validation Error

Origin Validation Error represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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