#VU87825 Cross-site scripting in tinymce

Vulnerability identifier: #VU87825

Vulnerability 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

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
tinymce
Web applications / JS libraries

Vendor: tinymce

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, 2.0.9, 2.1.1, 2.1.2, 3.0 rc1 - 3.5.12, 4.0b1 - 4.9.11, 5.0.0 - 5.10.9, 6.0.0 - 6.8.0

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

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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.