CVE-2024-38356 TinyMCE Cross-Site Scripting (XSS) vulnerability using noneditable_regexp option

2024-06-1920:03:47

CWE-79

GitHub_M

github.com

tinymce

cross-site scripting

xss

noneditable_regexp

html attributes

patched

upgrade

vulnerability

6.1 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

5.6 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.7%

JSON

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.

CNA Affected

[
  {
    "vendor": "tinymce",
    "product": "tinymce",
    "versions": [
      {
        "status": "affected",
        "version": "< 5.11.0"
      },
      {
        "status": "affected",
        "version": ">= 6.0.0, <6.8.4"
      },
      {
        "status": "affected",
        "version": ">= 7.0.0, < 7.2.0"
      }
    ]
  }
]