GHSA-42ph-pf9q-cr72 · 深刻度: high · エコシステム: npm — Parse Server has a stored XSS filter bypass via Content-Type MIME parameter and missing XML extension blocklist entries
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.15 and 8.6.41, an attacker who is allowed to upload files can bypass the file extension filter by appending a MIME parameter (e.g. `;charset=utf-8`) to the `Content-Type` header. This causes the extension validation to fail matching against the blocklist, allowing active content to be stored and served under the application's domain. In addition, certain XML-based file extensions that can render scripts in web browsers are not included in the default blocklist. This can lead to stored XSS attacks, compromising session tokens, user credentials, or other sensitive data accessible via the browser's local storage. The fix in versions 9.6.0-alpha.15 and 8.6.41 strips MIME parameters from the `Content-Type` header before validating the file extension against the blocklist. The default blocklist has also been extended to include additional XML-based extensions (`xsd`, `rng`, `rdf`, `rdf+xml`, `owl`, `mathml`, `mathml+xml`) that can render active content in web browsers. Note that the `fileUpload.fileExtensions` option is intended to be configured as an allowlist of file extensions that are valid for a specific application, not as a denylist. The default denylist is provided only as a basic default that covers most common problematic extensions. It is not intended to be an exhaustive list of all potentially dangerous extensions. Developers should not rely on the default value, as new extensions that can render active content in browsers might emerge in the future. As a workaround, configure the `fileUpload.fileExtensions` option to use an allowlist of only the file extensions that your application needs, rather than relying on the default blocklist.
総合評価: CVE-2026-32728 は中リスク(40/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 0.27%、19 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 | 0.03% | 0.27% | +0.24% |
| 2 | 2026-03-20 | 0.05% | 0.03% | -0.02% |
| 3 | 2026-03-19 | — | 0.05% | — |
EPSS の全履歴 (全 3 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 |
|---|---|---|---|---|---|---|
| 8.3 | 4.0 | HIGH |
|
— | — | [email protected] |
| 7.6 | 3.1 | HIGH |
|
2.3 | 4.7 | [email protected] |
GHSA-42ph-pf9q-cr72 · 深刻度: high · エコシステム: npm — Parse Server has a stored XSS filter bypass via Content-Type MIME parameter and missing XML extension blocklist entries
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| parseplatform | parse-server | < 8.6.41 | cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:* |
| parseplatform | parse-server | >= 9.0.0, < 9.6.0 | cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:* |
| parseplatform | parse-server | 9.6.0 | cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha1:*:*:*:node.js:*:* |
| parseplatform | parse-server | 9.6.0 | cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha10:*:*:*:node.js:*:* |
| parseplatform | parse-server | 9.6.0 | cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha11:*:*:*:node.js:*:* |
| parseplatform | parse-server | 9.6.0 | cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha12:*:*:*:node.js:*:* |
| parseplatform | parse-server | 9.6.0 | cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha13:*:*:*:node.js:*:* |
| parseplatform | parse-server | 9.6.0 | cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha14:*:*:*:node.js:*:* |
| parseplatform | parse-server | 9.6.0 | cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha2:*:*:*:node.js:*:* |
| parseplatform | parse-server | 9.6.0 | cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha3:*:*:*:node.js:*:* |
| parseplatform | parse-server | 9.6.0 | cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha4:*:*:*:node.js:*:* |
| parseplatform | parse-server | 9.6.0 | cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha5:*:*:*:node.js:*:* |
| parseplatform | parse-server | 9.6.0 | cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha6:*:*:*:node.js:*:* |
| parseplatform | parse-server | 9.6.0 | cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha7:*:*:*:node.js:*:* |
| parseplatform | parse-server | 9.6.0 | cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha8:*:*:*:node.js:*:* |
| parseplatform | parse-server | 9.6.0 | cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha9:*:*:*:node.js:*:* |