← Back
CVE-2026-47760
high
CVSS 8.7
Cross-Site Scripting (XSS) in tinymce (CVE-2026-47760)
Summary
cross-site scripting in tinymce (CVE-2026-47760). Confidential information can be exposed externally. Mitigation: upgrade to `7.1.0` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-47760** has been found in tinymce.
Confidential information can be exposed externally. CVSS score: 8.7/10.
What to do: upgrade tinymce to **7.1.0** or later.
If unsure, ask your IT team or search "tinymce CVE-2026-47760" on the vendor's site.
CVE-2026-47760 (tinymce) — CWE-79 / CVSS v3 8.7
Attack vector: remote (network-reachable)
Patched: `7.1.0` — apply immediately
Workaround: No official workaround available.
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
❓ What is the problem
**Cross-site scripting (XSS)** (CWE-79) exists in tinymce.
📍 Affected scope
tinymce — .
🔥 Severity
Severity: High (CVSS 8.7/10). Confidential information can be exposed externally
🔧 How to fix
Update to **7.1.0**.
🛡️ Workaround
Workaround: No official workaround available.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'tinymce' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'tinymce' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `tinymce` を grep し、稼働しているサービス・バージョンを把握する。
-
5Apply temporary workaround mitigate
No official workaround available.パッチが適用されるまでの応急処置として、No official workaround available. を実施。回避策の副作用 (機能低下) を確認した上で。
-
6Apply patch patch
Upgrade tinymce to 7.1.0ステージング環境で 7.1.0 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスと、Step 3 で見つけた異常検知の続報チェックを含めること。
-
7Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
npm
tinymce
[{"type":"SEMVER","events":[{"introduced":"6.8.0"},{"fixed":"7.1.0"}]}]
nuget
TinyMCE
[{"type":"ECOSYSTEM","events":[{"introduced":"6.8.0"},{"fixed":"7.1.0"}]}]
composer
tinymce/tinymce
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.1.0"}]}]
Packagist
tinymce/tinymce
[{"type":"ECOSYSTEM","events":[{"introduced":"6.8.0"},{"fixed":"7.1.0"}]}]