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.
References (6)
Core 6
Core References
Third Party Advisory, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.307194
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.307194
Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.562301
Exploit, Patch patch
https://github.com/gorhill/uBlock/commit/eaedaf5b10d2f7857c6b77fbf7d4a80681d4d46c
Release Notes patch
https://github.com/gorhill/uBlock/releases/tag/1.63.3b17
Scores
CVSS v3
3.1
EPSS
0.0055
EPSS Percentile
41.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-1333
CWE-400
Status
published
Products (3)
debian/debian_linux
11.0
ublockorigin/ublock_origin
1.63.3 beta1 (16 CPE variants)
ublockorigin/ublock_origin
< 1.63.3
Published
May 02, 2025
Tracked Since
Feb 18, 2026