3.1
LOW
CVE-2025-4215
"uBlock Origin Regular Expression Complexity Remote Vulnerability"
Description

A vulnerability was found in gorhill uBlock Origin up to 1.63.3b16. It has been classified as problematic. Affected is the function currentStateChanged of the file src/js/1p-filters.js of the component UI. The manipulation leads to inefficient regular expression complexity. It is possible to launch the attack remotely. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 1.63.3b17 is able to address this issue. The patch is identified as eaedaf5b10d2f7857c6b77fbf7d4a80681d4d46c. It is recommended to upgrade the affected component.

INFO

Published Date :

May 2, 2025, 9:15 p.m.

Last Modified :

May 2, 2025, 9:15 p.m.

Remotely Exploitable :

Yes !

Impact Score :

1.4

Exploitability Score :

1.6
Affected Products

The following products are affected by CVE-2025-4215 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

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-2025-4215.

URL Resource
https://github.com/gorhill/uBlock/commit/eaedaf5b10d2f7857c6b77fbf7d4a80681d4d46c
https://github.com/gorhill/uBlock/releases/tag/1.63.3b17
https://vuldb.com/?ctiid.307194
https://vuldb.com/?id.307194
https://vuldb.com/?submit.562301

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).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-4215 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2025-4215 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.

  • New CVE Received by [email protected]

    May. 02, 2025

    Action Type Old Value New Value
    Added Description A vulnerability was found in gorhill uBlock Origin up to 1.63.3b16. It has been classified as problematic. Affected is the function currentStateChanged of the file src/js/1p-filters.js of the component UI. The manipulation leads to inefficient regular expression complexity. It is possible to launch the attack remotely. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 1.63.3b17 is able to address this issue. The patch is identified as eaedaf5b10d2f7857c6b77fbf7d4a80681d4d46c. It is recommended to upgrade the affected component.
    Added CVSS V4.0 AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
    Added CVSS V2 (AV:N/AC:H/Au:N/C:N/I:N/A:P)
    Added CWE CWE-400
    Added CWE CWE-1333
    Added Reference https://github.com/gorhill/uBlock/commit/eaedaf5b10d2f7857c6b77fbf7d4a80681d4d46c
    Added Reference https://github.com/gorhill/uBlock/releases/tag/1.63.3b17
    Added Reference https://vuldb.com/?ctiid.307194
    Added Reference https://vuldb.com/?id.307194
    Added Reference https://vuldb.com/?submit.562301
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-4215 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-2025-4215 weaknesses.

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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Scope
Confidentiality
Integrity
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Latest DB Update: May. 04, 2025 4:35