GHSA-v65r-p3vv-jjfv · 深刻度: medium · エコシステム: npm — TinyMCE mXSS vulnerability in undo/redo, getContent API, resetContent API, and Autosave plugin
TinyMCE is an open source rich text editor. A mutation cross-site scripting (mXSS) vulnerability was discovered in TinyMCE’s core undo and redo functionality. When a carefully-crafted HTML snippet passes the XSS sanitisation layer, it is manipulated as a string by internal trimming functions before being stored in the undo stack. If the HTML snippet is restored from the undo stack, the combination of the string manipulation and reparative parsing by either the browser's native [DOMParser API](https://developer.mozilla.org/en-US/docs/Web/API/DOMParser) (TinyMCE 6) or the SaxParser API (TinyMCE 5) mutates the HTML maliciously, allowing an XSS payload to be executed. This vulnerability has been patched in TinyMCE 5.10.8 and TinyMCE 6.7.1 by ensuring HTML is trimmed using node-level manipulation instead of string manipulation. Users are advised to upgrade. There are no known workarounds for this vulnerability.
総合評価: CVE-2023-45818 は低リスク(39.4/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.62%、45 パーセンタイル) 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
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。
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 | 1.28% | 0.62% | -0.66% |
| 2 | 2026-03-04 | 0.66% | 1.28% | +0.62% |
| 3 | 2026-03-01 | — | 0.66% | — |
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-v65r-p3vv-jjfv · 深刻度: medium · エコシステム: npm — TinyMCE mXSS vulnerability in undo/redo, getContent API, resetContent API, and Autosave plugin
| vendor | priority | summary | link |
|---|---|---|---|
ubuntu
|
medium | CVE-2023-45818 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-2023-45818 |