An unrestricted file upload issue in HorizontCMS through 1.0.0-beta allows an authenticated remote attacker (with access to the FileManager) to upload and execute arbitrary PHP code by uploading a PHP payload, and then using the FileManager's rename function to provide the payload (which will receive a random name on the server) with the PHP extension, and finally executing the PHP file via an HTTP GET request to /storage/<php_file_name>. NOTE: the vendor has patched this while leaving the version number at 1.0.0-beta.
総合評価: CVE-2020-27387 は悪用リスクが高い(79.1/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 18.46%、97 パーセンタイル) 根拠: 公開エクスプロイトが 2 件参照されています(Exploit-DB)。 推奨対応: 公開エクスプロイトが確認されています。影響範囲の確認、緩和策の適用、パッチ適用を優先してください。
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。
| EDB-ID | ソース | 種別 | 公開 | リンク |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 70.32% | 18.46% | -51.86% |
| 2 | 2025-11-21 | 61.88% | 70.32% | +8.44% |
| 3 | 2025-11-18 | — | 61.88% | — |
EPSS の全履歴 (全 39 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 |
|---|---|---|---|---|---|---|
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | [email protected] |
| 6.5 | 2.0 | MEDIUM |
|
8.0 | 6.4 | [email protected] |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| horizontcms_project | horizontcms | 1.0.0 | cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha:*:*:*:*:*:* |
| horizontcms_project | horizontcms | 1.0.0 | cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha2:*:*:*:*:*:* |
| horizontcms_project | horizontcms | 1.0.0 | cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha3:*:*:*:*:*:* |
| horizontcms_project | horizontcms | 1.0.0 | cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha4:*:*:*:*:*:* |
| horizontcms_project | horizontcms | 1.0.0 | cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha5:*:*:*:*:*:* |
| horizontcms_project | horizontcms | 1.0.0 | cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha6:*:*:*:*:*:* |
| horizontcms_project | horizontcms | 1.0.0 | cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha7:*:*:*:*:*:* |
| horizontcms_project | horizontcms | 1.0.0 | cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha8:*:*:*:*:*:* |
| horizontcms_project | horizontcms | 1.0.0 | cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:beta:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://packetstormsecurity.com/files/160046/HorizontCMS-1.0.0-beta-Shell-Upload.html | Exploit Third Party Advisory VDB Entry |
| https://blog.vonahi.io/whats-in-a-re-name/ | Exploit Patch Third Party Advisory |
| https://github.com/rapid7/metasploit-framework/pull/14340 | Third Party Advisory |
| https://github.com/ttimot24/HorizontCMS/commit/436b5ab679fd27afa3d99c023dbe103113da4fee | Patch Third Party Advisory |