Cross-site scripting in TinyMCE

1) Cross-site scripting

EUVDB-ID: #VU87825

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: N/A

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote user to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data when handling iframes. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

tinymce: 2.0.7 - 6.8.0

CPE2.3

• cpe:2.3:a:tinymce:tinymce:2.0.7:*:*:*:*:*:*:*
• cpe:2.3:a:tinymce:tinymce:2.0.9:*:*:*:*:*:*:*
• cpe:2.3:a:tinymce:tinymce:2.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:tinymce:tinymce:2.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:tinymce:tinymce:3.5.12:*:*:*:*:*:*:*
• cpe:2.3:a:tinymce:tinymce:4.9.11:*:*:*:*:*:*:*
• cpe:2.3:a:tinymce:tinymce:5.10.9:*:*:*:*:*:*:*
• cpe:2.3:a:tinymce:tinymce:6.8.0:*:*:*:*:*:*:*

External links

https://github.com/tinymce/tinymce/security/advisories/GHSA-438c-3975-5x3f

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.