Vulnerability Description
tinymce is an open source rich text editor. A cross-site scripting (XSS) vulnerability was discovered in the alert and confirm dialogs when these dialogs were provided with malicious HTML content. This can occur in plugins that use the alert or confirm dialogs, such as in the `image` plugin, which presents these dialogs when certain errors occur. The vulnerability allowed arbitrary JavaScript execution when an alert presented in the TinyMCE UI for the current user. This vulnerability has been patched in TinyMCE 5.10.7 and TinyMCE 6.3.1 by ensuring HTML sanitization was still performed after unwrapping invalid elements. Users are advised to upgrade to either 5.10.7 or 6.3.1. Users unable to upgrade may ensure the the `images_upload_handler` returns a valid value as per the images_upload_handler documentation.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tiny | Tinymce | < 5.10.7 |
Related Weaknesses (CWE)
References
- https://github.com/tinymce/tinymce/commit/6923d85eba6de3e08ebc9c5a387b5abdaa2115PatchThird Party Advisory
- https://github.com/tinymce/tinymce/commit/8bb2d2646d4e1a718fce61a775fa22e9d317b3PatchThird Party Advisory
- https://github.com/tinymce/tinymce/security/advisories/GHSA-gg8r-xjwq-4w92PatchThird Party Advisory
- https://www.tiny.cloud/docs/release-notes/release-notes5107/#securityfixesRelease NotesVendor Advisory
- https://www.tiny.cloud/docs/tinymce/6/6.3-release-notes/#security-fixesRelease NotesVendor Advisory
- https://www.tiny.cloud/docs/tinymce/6/file-image-upload/#images_upload_handlerVendor Advisory
- https://github.com/tinymce/tinymce/commit/6923d85eba6de3e08ebc9c5a387b5abdaa2115PatchThird Party Advisory
- https://github.com/tinymce/tinymce/commit/8bb2d2646d4e1a718fce61a775fa22e9d317b3PatchThird Party Advisory
- https://github.com/tinymce/tinymce/security/advisories/GHSA-gg8r-xjwq-4w92PatchThird Party Advisory
- https://www.tiny.cloud/docs/release-notes/release-notes5107/#securityfixesRelease NotesVendor Advisory
- https://www.tiny.cloud/docs/tinymce/6/6.3-release-notes/#security-fixesRelease NotesVendor Advisory
- https://www.tiny.cloud/docs/tinymce/6/file-image-upload/#images_upload_handlerVendor Advisory
FAQ
What is CVE-2022-23494?
CVE-2022-23494 is a vulnerability with a CVSS score of 5.4 (MEDIUM). tinymce is an open source rich text editor. A cross-site scripting (XSS) vulnerability was discovered in the alert and confirm dialogs when these dialogs were provided with malicious HTML content. Thi...
How severe is CVE-2022-23494?
CVE-2022-23494 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-23494?
Check the references section above for vendor advisories and patch information. Affected products include: Tiny Tinymce.