CVE-2024-38356

TinyMCE Cross-Site Scripting (XSS) vulnerability using noneditable_regexp option

Severity Score

6.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

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.

TinyMCE es un editor de texto enriquecido de código abierto. Se descubrió una vulnerabilidad de cross-site scripting (XSS) en el código de extracción de contenido de TinyMCE. Al utilizar la opción `noneditable_regexp`, se podían ejecutar atributos HTML especialmente manipulados que contenían código malicioso cuando se extraía el contenido del editor. Esta vulnerabilidad se ha solucionado en TinyMCE 7.2.0, TinyMCE 6.8.4 y TinyMCE 5.11.0 LTS garantizando que, al utilizar la opción `noneditable_regexp`, se verifique correctamente que cualquier contenido dentro de un atributo coincida con la expresión regular configurada antes de agregarlo. Se recomienda a los usuarios que actualicen. No se conocen workarounds para esta vulnerabilidad.

*Credits: N/A

CVSS Scores

GitHubv3.1 6.1

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-06-14 CVE Reserved
2024-06-19 CVE Published
2024-06-20 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

References (5)

URL	Tag	Source
https://github.com/tinymce/tinymce/commit/5acb741665a98e83d62b91713c800abbff43b00d	X_refsource_misc
https://github.com/tinymce/tinymce/security/advisories/GHSA-9hcv-j9pv-qmph	X_refsource_confirm
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

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Tinymce Search vendor "Tinymce"		Tinymce Search vendor "Tinymce" for product "Tinymce"				< 5.11.0 Search vendor "Tinymce" for product "Tinymce" and version " < 5.11.0"		en		Affected
Tinymce Search vendor "Tinymce"		Tinymce Search vendor "Tinymce" for product "Tinymce"				>= 6.0.0 < 6.8.4 Search vendor "Tinymce" for product "Tinymce" and version " >= 6.0.0 < 6.8.4"		en		Affected
Tinymce Search vendor "Tinymce"		Tinymce Search vendor "Tinymce" for product "Tinymce"				>= 7.0.0 < 7.2.0 Search vendor "Tinymce" for product "Tinymce" and version " >= 7.0.0 < 7.2.0"		en		Affected