CVE-2025-4215
A vulnerability was found in gorhill uBlock Origin up to 1.63.3b16.
Does this matter?
Lower severity and a low EPSS score (0.74%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 2.3 LOWCVSS: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/M
- EPSS
- 0.74% probability · 53th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400, CWE-1333
- Affected
- ublockorigin/ublock origin · debian/debian linux
- Source
- cna@vuldb.com
References
- https://github.com/gorhill/uBlock/commit/eaedaf5b10d2f7857c6b77fbf7d4a80681d4d46cExploit, Patch
- https://github.com/gorhill/uBlock/releases/tag/1.63.3b17Release Notes
- https://vuldb.com/?ctiid.307194Permissions Required, VDB Entry
- https://vuldb.com/?id.307194Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.562301Third Party Advisory, VDB Entry
- https://lists.debian.org/debian-lts-announce/2025/06/msg00013.htmlMailing List
- https://github.com/gorhill/uBlock/commit/eaedaf5b10d2f7857c6b77fbf7d4a80681d4d46cExploit, Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.