Google Chrome up to 141.0.7390.122 Extensions authentication bypass

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.
6.0$5k-$25k0.00

Summaryinfo

A vulnerability has been found in Google Chrome and classified as critical. Affected by this vulnerability is an unknown functionality of the component Extensions. This manipulation causes Remote Code Execution. This vulnerability is handled as CVE-2025-12445. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Google Chrome and classified as critical. Affected by this vulnerability is an unknown part of the component Extensions. The manipulation with an unknown input leads to a remote code execution vulnerability. The CWE definition for the vulnerability is CWE-288. A product requires authentication, but the product has an alternate path or channel that does not require authentication. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Policy bypass in Extensions in Google Chrome prior to 142.0.7444.59 allowed an attacker who convinced a user to install a malicious extension to leak cross-origin data via a crafted Chrome Extension. (Chromium security severity: Low)

The advisory is shared at chromereleases.googleblog.com. This vulnerability is known as CVE-2025-12445. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 11/11/2025).

The vulnerability scanner Nessus provides a plugin with the ID 272077 (Debian dsa-6046 : chromium - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 142.0.7444.59 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (272077). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Authentication bypass
CWE: CWE-288 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Bug Bounty Price: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 272077
Nessus Name: Debian dsa-6046 : chromium - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Chrome 142.0.7444.59

Timelineinfo

10/31/2025 Advisory disclosed
10/31/2025 +0 days VulDB entry created
11/13/2025 +13 days VulDB entry last update

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: chromereleases.googleblog.com
Status: Confirmed

CVE: CVE-2025-12445 (🔒)
GCVE (CVE): GCVE-0-2025-12445
GCVE (VulDB): GCVE-100-330781

Entryinfo

Created: 10/31/2025 13:35
Updated: 11/13/2025 04:20
Changes: 10/31/2025 13:35 (53), 11/01/2025 10:20 (2), 11/11/2025 05:35 (1), 11/13/2025 04:20 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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