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CVE-2025-4215 – “uBlock Origin Regular Expression Complexity Remote Vulnerability”

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
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