TinyMCE Cross-Site Scripting (XSS) vulnerability using noscript elements
Published Jun 19, 2024
5.3
MEDIUMCVSS 4.0
EPSS 0.53%
Description
TinyMCE is an open source rich text editor. A cross-site scripting (XSS) vulnerability was discovered in TinyMCE’s content parsing code. This allowed specially crafted noscript elements containing malicious code to be executed when that content was loaded into the editor. This vulnerability has been patched in TinyMCE 7.2.0, TinyMCE 6.8.4 and TinyMCE 5.11.0 LTS by ensuring that content within noscript elements are properly parsed. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Affected products
-
- Version < 5.11.0StatusaffectedConstraints-
- Version >= 6.0.0, <6.8.4StatusaffectedConstraints-
- Version >= 7.0.0, < 7.2.0StatusaffectedConstraints-
- Version
No data.
No data.
No Red Hat product state for this CVE.
tinymce
npm
Introduced 6.0.0 Fixed 6.8.4tinymce
npm
Introduced 7.0.0 Fixed 7.2.0tinymce
npm
Introduced 0 Fixed 5.11.0TinyMCE
NuGet
Introduced 0 Fixed 5.11.0TinyMCE
NuGet
Introduced 6.0.0 Fixed 6.8.4TinyMCE
NuGet
Introduced 7.0.0 Fixed 7.2.0tinymce/tinymce
Packagist
Introduced 0 Fixed 5.11.0tinymce/tinymce
Packagist
Introduced 6.0.0 Fixed 6.8.4tinymce/tinymce
Packagist
Introduced 7.0.0 Fixed 7.2.0django-tinymce
PyPI
Introduced 0 Fixed 4.1.0
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | tinymce | 6.0.0 | 6.8.4 |
| npm | tinymce | 7.0.0 | 7.2.0 |
| npm | tinymce | 0 | 5.11.0 |
| NuGet | TinyMCE | 0 | 5.11.0 |
| NuGet | TinyMCE | 6.0.0 | 6.8.4 |
| NuGet | TinyMCE | 7.0.0 | 7.2.0 |
| Packagist | tinymce/tinymce | 0 | 5.11.0 |
| Packagist | tinymce/tinymce | 6.0.0 | 6.8.4 |
| Packagist | tinymce/tinymce | 7.0.0 | 7.2.0 |
| PyPI | django-tinymce | 0 | 4.1.0 |
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:L
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Jun 20, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2024–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (7 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.53% (0.00529) | 42.65th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.53% (0.00529) | 40.31th | v5 (v2026.06.15) |
| Dec 1, 2025 | 0.61% (0.00608) | 68.96th | v4 (v2025.03.14) |
| Oct 13, 2025 | 1.62% (0.01615) | 81.09th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.35% (0.00352) | 55.45th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00045) | 17.70th | v3 (v2023.03.01) |
| Jun 20, 2024 | 0.04% (0.00045) | 15.54th | v3 (v2023.03.01) |
References (8)
- https://github.com/advisories/GHSA-w9jx-4g6g-rp7x Advisory
- https://github.com/tinymce/tinymce/commit/5acb741665a98e83d62b91713c800abbff43b00d x_refsource_MISC
- https://github.com/tinymce/tinymce/commit/a9fb858509f86dacfa8b01cfd34653b408983ac0
- https://github.com/tinymce/tinymce/security/advisories/GHSA-w9jx-4g6g-rp7x x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2024-38357
- https://owasp.org/www-community/attacks/xss x_refsource_MISC
- https://www.tiny.cloud/docs/tinymce/6/6.8.4-release-notes/#overview x_refsource_MISC
- https://www.tiny.cloud/docs/tinymce/7/7.2-release-notes/#overview x_refsource_MISC
Change history (0)
No recorded changes yet.