CVE-2025-9183
Firefox Spoofing Address Bar Vulnerability
Description
Spoofing issue in the Address Bar component. This vulnerability affects Firefox < 142 and Firefox ESR < 140.2.
INFO
Published Date :
Aug. 19, 2025, 9:15 p.m.
Last Modified :
Aug. 21, 2025, 6:37 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update Firefox to version 142 or later.
- Update Firefox ESR to version 140.2 or later.
Public PoC/Exploit Available at Github
CVE-2025-9183 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-9183.
| URL | Resource |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1976102 | Issue Tracking Permissions Required |
| https://www.mozilla.org/security/advisories/mfsa2025-64/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-67/ | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-9183 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-9183
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Web Browsers address bar spoofing vulnerabilities
HTML
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-9183 vulnerability anywhere in the article.
-
CybersecurityNews
Mozilla High Severity Vulnerabilities Enables Remote Code Execution
Mozilla has released Firefox 142 to address multiple high-severity security vulnerabilities that could allow attackers to execute arbitrary code remotely on affected systems. The security advisory, pu ... Read more
The following table lists the changes that have been made to the
CVE-2025-9183 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Aug. 21, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* versions up to (excluding) 142.0 *cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* versions up to (excluding) 140.2.0 Added Reference Type Mozilla Corporation: https://bugzilla.mozilla.org/show_bug.cgi?id=1976102 Types: Issue Tracking, Permissions Required Added Reference Type Mozilla Corporation: https://www.mozilla.org/security/advisories/mfsa2025-64/ Types: Vendor Advisory Added Reference Type Mozilla Corporation: https://www.mozilla.org/security/advisories/mfsa2025-67/ Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 20, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N Added CWE CWE-451 -
New CVE Received by [email protected]
Aug. 19, 2025
Action Type Old Value New Value Added Description Spoofing issue in the Address Bar component. This vulnerability affects Firefox < 142 and Firefox ESR < 140.2. Added Reference https://bugzilla.mozilla.org/show_bug.cgi?id=1976102 Added Reference https://www.mozilla.org/security/advisories/mfsa2025-64/ Added Reference https://www.mozilla.org/security/advisories/mfsa2025-67/