GHSA-x369-mcw8-8rvj · 深刻度： low · エコシステム： npm — Dark Reader gives users the ability to request style sheets from local web servers
Dark Reader is an accessibility browser extension that makes web pages colors dark. The dynamic dark mode feature of the extension works by analyzing the colors of web pages found in CSS style sheet files. In order to analyze cross-origin style sheets (stored on websites different from the original web page), Dark Reader requests such files via a background worker, ensuring the request is performed with no credentials and that the content type of the response is a CSS file. Prior to Dark Reader 4.9.117, this style content was assigned to an HTML Style Element in order to parse and loop through style declarations, and also stored in page's Session Storage for performance gains. This could allow a website author to request a style sheet from a locally running web server, for example by having a link pointing to `http[:]//localhost[:]8080/style[.]css`. The brute force of the host name, port and file name would be unlikely due to performance impact, that would cause the browser tab to hang shortly, but it could be possible to request a style sheet if the full URL was known in advance. As per December 18, 2025 there is no known exploit of the issue. The problem has been fixed in version 4.9.117 on December 3, 2025. The style sheets are now parsed using modern Constructed Style Sheets API and the contents of cross-origin style sheets is no longer stored in page's Session Storage. Version 4.9.118 (December 8, 2025) restricts cross-origin requests to localhost aliases, IP addresses, hosts with ports and non-HTTPS resources. The absolute majority of users have received an update 4.1.117 or 4.9.118 automatically within a week. However users must ensure their automatic updates are not blocked and they are using the latest version of the extension by going to chrome://extensions or about:addons pages in browser settings. Users utilizing manual builds must upgrade to version 4.9.118 and above. Developers using `darkreader` NPM package for their own websites are likely not affected, but must ensure the function passed to `setFetchMethod()` for performing cross-origin requests works within the intended scope. Developers using custom forks of earlier versions of Dark Reader to build other extensions or integrating into their apps or browsers must ensure they perform cross-origin requests safely and the responses are not accessible outside of the app or extension.
総合評価: CVE-2025-68467 は低リスク（14.2/100）。CVSS 深刻度は低。悪用される可能性が高い（EPSS 0.11%、1 パーセンタイル） 推奨対応: 総合リスクは低く緊急対応は不要です。通常の保守サイクルでパッチを適用し、CVSS / EPSS が上昇したら優先度を見直してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置（高いほど相対的に深刻）を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.01% | 0.11% | +0.09% |
| 2 | 2026-03-05 | — | 0.01% | — |
EPSS の全履歴 （全 2 件）
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 3.4 | 3.1 | LOW |
|
1.6 | 1.4 | [email protected] |
GHSA-x369-mcw8-8rvj · 深刻度： low · エコシステム： npm — Dark Reader gives users the ability to request style sheets from local web servers
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2025-68467: 1 source package rows (darkreader); 1 state rows across 1 repos (edge-community); fixed 0, open 1. | https://security.alpinelinux.org/vuln/CVE-2025-68467 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| darkreader | darkreader | < 4.9.117 | cpe:2.3:a:darkreader:darkreader:*:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://github.com/darkreader/darkreader/security/advisories/GHSA-x369-mcw8-8rvj | Vendor Advisory |