CVE-2022-23494

Description

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.

Risk Information

Base Score

6.1

MODERATE

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Score

Exploitation Probability

1.799

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2022-23494 are fixed in Nuget - TinyMCE 6.3.1	Windows
Vulnerabilities CVE-2022-23494 are fixed in Nuget - TinyMCE 5.10.7	Windows
Vulnerabilities CVE-2022-23494 are fixed in Nuget - TinyMCE for Linux 6.3.1	Linux
Vulnerabilities CVE-2022-23494 are fixed in Nuget - TinyMCE for Linux 5.10.7	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234