GHSA-2ccx-2gf3-8xvv · 深刻度： medium · エコシステム： composer — Kirby .dev domains and some reverse proxy setups were treated as local
Kirby is a CMS. In Kirby CMS (getkirby/cms) before version 3.3.6, and Kirby Panel before version 2.5.14 there is a vulnerability in which the admin panel may be accessed if hosted on a .dev domain. In order to protect new installations on public servers that don't have an admin account for the Panel yet, we block account registration there by default. This is a security feature, which we implemented years ago in Kirby 2. It helps to avoid that you forget registering your first admin account on a public server. In this case – without our security block – someone else might theoretically be able to find your site, find out it's running on Kirby, find the Panel and then register the account first. It's an unlikely situation, but it's still a certain risk. To be able to register the first Panel account on a public server, you have to enforce the installer via a config setting. This helps to push all users to the best practice of registering your first Panel account on your local machine and upload it together with the rest of the site. This installation block implementation in Kirby versions before 3.3.6 still assumed that .dev domains are local domains, which is no longer true. In the meantime, those domains became publicly available. This means that our installation block is no longer working as expected if you use a .dev domain for your Kirby site. Additionally the local installation check may also fail if your site is behind a reverse proxy. You are only affected if you use a .dev domain or your site is behind a reverse proxy and you have not yet registered your first Panel account on the public server and someone finds your site and tries to login at `yourdomain.dev/panel` before you register your first account. You are not affected if you have already created one or multiple Panel accounts (no matter if on a .dev domain or behind a reverse proxy). The problem has been patched in Kirby 3.3.6. Please upgrade to this or a later version to fix the vulnerability.
総合評価: CVE-2020-26253 は中リスク（42.3/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 0.56%、42 パーセンタイル） 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
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 | 0.16% | 0.56% | +0.40% |
| 2 | 2025-03-17 | 0.09% | 0.16% | +0.07% |
| 3 | 2023-03-07 | — | 0.09% | — |
EPSS の全履歴 （全 7 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 |
|---|---|---|---|---|---|---|
| 6.8 | 3.1 | MEDIUM |
|
2.2 | 4.0 | [email protected] |
| 5.9 | 3.1 | MEDIUM |
|
2.2 | 3.6 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
GHSA-2ccx-2gf3-8xvv · 深刻度： medium · エコシステム： composer — Kirby .dev domains and some reverse proxy setups were treated as local
| URL | タグ |
|---|---|
| https://github.com/getkirby-v2/panel/commit/7f9ac1876bacb89fd8f142f5e561a02ebb725baa | Patch Third Party Advisory |
| https://github.com/getkirby/kirby/releases/tag/3.3.6 | Release Notes Third Party Advisory |
| https://github.com/getkirby/kirby/security/advisories/GHSA-2ccx-2gf3-8xvv | Patch Third Party Advisory |
| https://packagist.org/packages/getkirby/cms | Product Third Party Advisory |
| https://packagist.org/packages/getkirby/panel | Product Third Party Advisory |