CVE-2023-48219

Description

TinyMCE is an open source rich text editor. A mutation cross-site scripting (mXSS) vulnerability was discovered in TinyMCEs core undo/redo functionality and other APIs and plugins. Text nodes within specific parents are not escaped upon serialization according to the HTML standard. If such text nodes contain a special character reserved as an internal marker, they can be combined with other HTML patterns to form malicious snippets. These snippets pass the initial sanitisation layer when the content is parsed into the editor body, but can trigger XSS when the special internal marker is removed from the content and re-parsed. his vulnerability has been patched in TinyMCE versions 6.7.3 and 5.10.9. Users are advised to upgrade. There are no known workarounds for this vulnerability.

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

2.622

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2023-48219 are fixed in Nuget - TinyMCE 5.10.9	Windows
Vulnerabilities CVE-2023-48219 are fixed in Nuget - TinyMCE 6.7.3	Windows
Vulnerabilities CVE-2023-48219 are fixed in Nuget - TinyMCE for Linux 5.10.9	Linux
Vulnerabilities CVE-2023-48219 are fixed in Nuget - TinyMCE for Linux 6.7.3	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