#VU70109 Cross-site scripting in tinymce - CVE-2022-23494
Published: December 12, 2022
Vulnerability identifier: #VU70109
Vulnerability risk: Low
CVSSv4.0: 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: CVE-2022-23494
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
tinymce
tinymce
Software vendor:
tinymce
tinymce
Description
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in TinyMCE alerts. A remote user can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Remediation
Install updates from vendor's website.
External links
- https://github.com/tinymce/tinymce/commit/6923d85eba6de3e08ebc9c5a387b5abdaa21150e
- https://www.tiny.cloud/docs/tinymce/6/file-image-upload/#images_upload_handler
- https://www.tiny.cloud/docs/release-notes/release-notes5107/#securityfixes
- https://github.com/tinymce/tinymce/commit/8bb2d2646d4e1a718fce61a775fa22e9d317b32d
- https://github.com/tinymce/tinymce/security/advisories/GHSA-gg8r-xjwq-4w92
- https://www.tiny.cloud/docs/tinymce/6/6.3-release-notes/#security-fixes