This page lists publicly disclosed CVE vulnerabilities affecting ublockorigin ublock_origin (linked via NVD CPE). Each row includes severity scores, summaries, and publication dates to help identify and analyze security issues.
| CVE | Summary | Source | Max CVSS | EPSS % | Published | Updated |
|---|---|---|---|---|---|---|
| CVE-2025-4215 | 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 1.63.3b1 | [email protected] | 2.3 | 0.12% | 2025-05-02 | 2025-06-17 |
| CVE-2021-36773 | uBlock Origin before 1.36.2 and nMatrix before 4.4.9 support an arbitrary depth of parameter nesting for strict blocking, which allows crafted web sites to cause a denial of service (unbounded recursion that can trigger memory consumption and a loss of all blocking functionality). | [email protected] | 7.5 | 1.51% | 2021-07-18 | 2024-11-21 |
| CVE-2019-11595 | In uBlock before 0.9.5.15, the $rewrite filter option allows filter-list maintainers to run arbitrary code in a client-side session when a web service loads a script for execution using XMLHttpRequest or Fetch, and the script origin has an open redirect. | [email protected] | 9.0 | 0.94% | 2019-04-29 | 2024-11-21 |