TinyMCE Cross-Site Scripting (XSS) vulnerability using noneditable_regexp option
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 extraction code. When using the `noneditable_regexp` option, specially crafted HTML attributes containing malicious code were able to be executed when content was extracted from 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, when using the `noneditable_regexp` option, any content within an attribute is properly verified to match the configured regular expression before being added. 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 7.0.0 Fixed 7.2.0tinymce
npm
Introduced 0 Fixed 5.11.0tinymce
npm
Introduced 6.0.0 Fixed 6.8.4TinyMCE
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 | 7.0.0 | 7.2.0 |
| npm | tinymce | 0 | 5.11.0 |
| npm | tinymce | 6.0.0 | 6.8.4 |
| 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 (5 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) |
| 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 (9)
- https://github.com/advisories/GHSA-9hcv-j9pv-qmph 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-9hcv-j9pv-qmph x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2024-38356
- 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
- https://www.tiny.cloud/docs/tinymce/latest/7.2-release-notes/#overview
Change history (0)
No recorded changes yet.