Google Chrome up to 139.0.7258.66 File Picker cross-domain policy

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.1$5k-$25k0.00

Summaryinfo

A vulnerability has been found in Google Chrome and classified as problematic. Affected by this vulnerability is an unknown functionality of the component File Picker. The manipulation leads to cross-domain policy. This vulnerability is uniquely identified as CVE-2025-8881. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Google Chrome and classified as problematic. This issue affects an unknown part of the component File Picker. The manipulation with an unknown input leads to a cross-domain policy vulnerability. Using CWE to declare the problem leads to CWE-942. The product uses a cross-domain policy file that includes domains that should not be trusted. Impacted is confidentiality. The summary by CVE is:

Inappropriate implementation in File Picker in Google Chrome prior to 139.0.7258.127 allowed a remote attacker who convinced a user to engage in specific UI gestures to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

It is possible to read the advisory at chromereleases.googleblog.com. The identification of this vulnerability is CVE-2025-8881 since 08/12/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 08/18/2025).

The vulnerability scanner Nessus provides a plugin with the ID 249334 (Debian dsa-5976 : chromium - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 139.0.7258.127 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (249334) and CERT Bund (WID-SEC-2025-1812). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Debian Linux
  • Fedora Linux
  • SUSE openSUSE
  • Google Chrome
  • Microsoft Edge

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross-domain policy
CWE: CWE-942 / CWE-346 / CWE-345
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 249334
Nessus Name: Debian dsa-5976 : chromium - security update

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Chrome 139.0.7258.127

Timelineinfo

08/12/2025 CVE reserved
08/13/2025 +1 days Advisory disclosed
08/13/2025 +0 days VulDB entry created
08/18/2025 +5 days VulDB entry last update

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: 433800
Status: Confirmed

CVE: CVE-2025-8881 (🔒)
GCVE (CVE): GCVE-0-2025-8881
GCVE (VulDB): GCVE-100-319847
CERT Bund: WID-SEC-2025-1812 - Google Chrome und Microsoft Edge: Mehrere Schwachstellen ermöglichen Codeausführung

Entryinfo

Created: 08/13/2025 07:22
Updated: 08/18/2025 08:19
Changes: 08/13/2025 07:22 (57), 08/14/2025 11:32 (1), 08/15/2025 04:05 (2), 08/17/2025 18:09 (7), 08/18/2025 08:19 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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