CVE-2025-4215

LOW
2025-05-02 [email protected]
2.3
CVSS 4.0

CVSS Vector

CVSS:4.0/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
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
P
Scope
X

Lifecycle Timeline

4
Patch Released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 28, 2026 - 18:39 vuln.today
PoC Detected
Jun 17, 2025 - 14:17 vuln.today
Public exploit code
CVE Published
May 02, 2025 - 21:15 nvd
LOW 2.3

Tags

Denial Of Service Ublock Origin Debian Linux

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.

Analysis

A vulnerability was found in gorhill uBlock Origin up to 1.63.3b16. Rated low severity (CVSS 2.3), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.

Technical Context

This vulnerability is classified as Uncontrolled Resource Consumption (CWE-400), which allows attackers to cause denial of service by exhausting system resources. 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. Affected products include: Ublockorigin Ublock Origin, Debian Debian Linux. Version information: up to 1.63.3.

Affected Products

Ublockorigin Ublock Origin, Debian Debian Linux.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement rate limiting, set resource quotas, validate input sizes, use timeouts.

Priority Score

33
Low Medium High Critical
KEV: 0
EPSS: +1.3
CVSS: +12
POC: +20

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CVE-2025-4215 vulnerability details – vuln.today
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