CVE-2022-23494
A cross-site scripting (XSS) vulnerability was discovered in the alert and confirm dialogs when these dialogs were provided with malicious HTML content.
Does this matter?
Lower severity and a low EPSS score (0.94%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.94% probability · 59th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- tiny/tinymce
- Source
- security-advisories@github.com
References
- https://github.com/tinymce/tinymce/commit/6923d85eba6de3e08ebc9c5a387b5abdaa21150ePatch, Third Party Advisory
- https://github.com/tinymce/tinymce/commit/8bb2d2646d4e1a718fce61a775fa22e9d317b32dPatch, Third Party Advisory
- https://github.com/tinymce/tinymce/security/advisories/GHSA-gg8r-xjwq-4w92Patch, Third Party Advisory
- https://www.tiny.cloud/docs/release-notes/release-notes5107/#securityfixesRelease Notes, Vendor Advisory
- https://www.tiny.cloud/docs/tinymce/6/6.3-release-notes/#security-fixesRelease Notes, Vendor Advisory
- https://www.tiny.cloud/docs/tinymce/6/file-image-upload/#images_upload_handlerVendor Advisory
- https://github.com/tinymce/tinymce/commit/6923d85eba6de3e08ebc9c5a387b5abdaa21150ePatch, Third Party Advisory
- https://github.com/tinymce/tinymce/commit/8bb2d2646d4e1a718fce61a775fa22e9d317b32dPatch, Third Party Advisory
- https://github.com/tinymce/tinymce/security/advisories/GHSA-gg8r-xjwq-4w92Patch, Third Party Advisory
- https://www.tiny.cloud/docs/release-notes/release-notes5107/#securityfixesRelease Notes, Vendor Advisory
- https://www.tiny.cloud/docs/tinymce/6/6.3-release-notes/#security-fixesRelease Notes, Vendor Advisory
- https://www.tiny.cloud/docs/tinymce/6/file-image-upload/#images_upload_handlerVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.