GHSA-v626-r774-j7f8 · 深刻度: medium · エコシステム: npm — TinyMCE vulnerable to mutation Cross-site Scripting via special characters in unescaped text nodes
TinyMCE is an open source rich text editor. A mutation cross-site scripting (mXSS) vulnerability was discovered in TinyMCE’s core undo/redo functionality and other APIs and plugins. Text nodes within specific parents are not escaped upon serialization according to the HTML standard. If such text nodes contain a special character reserved as an internal marker, they can be combined with other HTML patterns to form malicious snippets. These snippets pass the initial sanitisation layer when the content is parsed into the editor body, but can trigger XSS when the special internal marker is removed from the content and re-parsed. his vulnerability has been patched in TinyMCE versions 6.7.3 and 5.10.9. Users are advised to upgrade. There are no known workarounds for this vulnerability.
総合評価: CVE-2023-48219 は中リスク(40.1/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.71%、49 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 | 2.08% | 0.71% | -1.36% |
| 2 | 2026-04-25 | 2.02% | 2.08% | +0.06% |
| 3 | 2026-04-19 | — | 2.02% | — |
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 |
|---|---|---|---|---|---|---|
| 6.1 | 3.1 | MEDIUM |
|
2.8 | 2.7 | [email protected] |
| 6.1 | 3.1 | MEDIUM |
|
2.8 | 2.7 | [email protected] |
GHSA-v626-r774-j7f8 · 深刻度: medium · エコシステム: npm — TinyMCE vulnerable to mutation Cross-site Scripting via special characters in unescaped text nodes
| vendor | priority | summary | link |
|---|---|---|---|
ubuntu
|
medium | CVE-2023-48219 medium priority: Ubuntu including 1 source packages (tinymce), 12 status rows across 12 suites (bionic, focal, jammy, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 7, needs-triage 4, ignored 1. | https://ubuntu.com/security/CVE-2023-48219 |
| URL | タグ |
|---|---|
| https://github.com/tinymce/tinymce/security/advisories/GHSA-v626-r774-j7f8 | Vendor Advisory |
| https://tiny.cloud/docs/release-notes/release-notes5109/ | Release Notes |
| https://tiny.cloud/docs/tinymce/6/6.7.3-release-notes/ | Release Notes |