CVE-2022-23494

tinymce is an open source rich text editor. A cross-site scripting (XSS) vulnerability was discovered in the alert and confirm dialogs when these dialogs were provided with malicious HTML content. This can occur in plugins that use the alert or confirm dialogs, such as in the `image` plugin, which presents these dialogs when certain errors occur. The vulnerability allowed arbitrary JavaScript execution when an alert presented in the TinyMCE UI for the current user. This vulnerability has been patched in TinyMCE 5.10.7 and TinyMCE 6.3.1 by ensuring HTML sanitization was still performed after unwrapping invalid elements. Users are advised to upgrade to either 5.10.7 or 6.3.1. Users unable to upgrade may ensure the the `images_upload_handler` returns a valid value as per the images_upload_handler documentation.

CVSS v3.0 6.1 MEDIUM

6.1^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/tinymce/tinymce/commit/6923d85eba6de3e08ebc9c5a387b5abdaa21150e	Patch Third Party Advisory
https://www.tiny.cloud/docs/tinymce/6/file-image-upload/#images_upload_handler	Vendor Advisory
https://www.tiny.cloud/docs/release-notes/release-notes5107/#securityfixes	Release Notes Vendor Advisory
https://github.com/tinymce/tinymce/commit/8bb2d2646d4e1a718fce61a775fa22e9d317b32d	Patch Third Party Advisory
https://github.com/tinymce/tinymce/security/advisories/GHSA-gg8r-xjwq-4w92	Patch Third Party Advisory
https://www.tiny.cloud/docs/tinymce/6/6.3-release-notes/#security-fixes	Release Notes Vendor Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:tiny:tinymce::::::::
	cpe:2.3:a:tiny:tinymce::::::::

Information

Published : 2022-12-08 14:15

Updated : 2022-12-12 09:48

NVD link : CVE-2022-23494

Mitre link : CVE-2022-23494

JSON object : View

CWE

CWE-79

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

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Products Affected

tiny

tinymce

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