CVE-2024-38356CWE-79

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

Medium · published June 19, 2024

CVSS v3.1
6.1
EPSS
1%
Percentile
43.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00529 · 43.9th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2024-06-19T20:03Z
EPSS history
Timeline
  • 19 JUN 20:03Z
    TinyMCE Cross-Site Scripting (XSS) vulnerability using noneditable_regexp option
    cvelistv5