CVE-2025-9866
Unknown
Unknown - Not Provided
BaseFortify
Publication date: 2025-09-03
Last updated on: 2025-09-04
Assigner: Chrome
Description
Description
Inappropriate implementation in Extensions in Google Chrome prior to 140.0.7339.80 allowed a remote attacker to bypass content security policy via a crafted HTML page. (Chromium security severity: Medium)
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| chrome | to 140.0.7339.80 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-693 | The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is due to an inappropriate implementation in the Extensions feature of Google Chrome versions prior to 140.0.7339.80. It allows a remote attacker to bypass the content security policy by using a specially crafted HTML page.
How can this vulnerability impact me? :
The vulnerability can allow a remote attacker to bypass content security policies, potentially leading to unauthorized access or execution of malicious content. This can result in high impact on confidentiality, integrity, and availability of data or systems.
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