MyBB is a free and open source forum software. In affected versions the Admin CP's Settings management module does not validate setting types correctly on insertion and update, making it possible to add settings of supported type `php` with PHP code, executed on on _Change Settings_ pages. This results in a Remote Code Execution (RCE) vulnerability. The vulnerable module requires Admin CP access with the `Can manage settings?` permission. MyBB's Settings module, which allows administrators to add, edit, and delete non-default settings, stores setting data in an options code string ($options_code; mybb_settings.optionscode database column) that identifies the setting type and its options, separated by a new line character (\n). In MyBB 1.2.0, support for setting type php was added, for which the remaining part of the options code is PHP code executed on Change Settings pages (reserved for plugins and internal use). MyBB 1.8.30 resolves this issue. There are no known workarounds.
総合評価: CVE-2022-24734 は悪用リスクが高い(73.9/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 77.68%、100 パーセンタイル) 根拠: 公開エクスプロイトが 3 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 |
|---|---|---|---|---|
| 50924 | exploit_db | edb | 2022-05-11 | Exploit-DB ↗ |
| — | 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 | 82.41% | 77.68% | -4.74% |
| 2 | 2026-02-05 | 80.34% | 82.41% | +2.08% |
| 3 | 2025-11-21 | — | 80.34% | — |
EPSS の全履歴 (全 50 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 |
|---|---|---|---|---|---|---|
| 7.2 | 3.1 | HIGH |
|
1.2 | 5.9 | [email protected] |
| 7.2 | 3.1 | HIGH |
|
1.2 | 5.9 | [email protected] |
| 6.5 | 2.0 | MEDIUM |
|
8.0 | 6.4 | [email protected] |
| URL | タグ |
|---|---|
| http://packetstormsecurity.com/files/167082/MyBB-1.8.29-Remote-Code-Execution.html | Exploit Third Party Advisory VDB Entry |
| http://packetstormsecurity.com/files/167333/MyBB-Admin-Control-Remote-Code-Execution.html | Exploit Third Party Advisory |
| https://github.com/mybb/mybb/commit/92012b9831b330714b9f9b4646a98784113489c1 | Patch Third Party Advisory |
| https://github.com/mybb/mybb/security/advisories/GHSA-876v-gwgh-w57f | Patch Third Party Advisory |
| https://mybb.com/versions/1.8.30/ | Release Notes Vendor Advisory |
| https://www.zerodayinitiative.com/advisories/ZDI-22-503/ | Third Party Advisory VDB Entry Vendor Advisory |