PT-2022-16027 · Tinymce · Tinymce

P4Rkjw · Published 2022-12-08 · Updated 2022-12-12 · CVE-2022-23494

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions TinyMCE versions prior to 5.10.7 TinyMCE versions prior to 6.3.1

Description 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.

Recommendations To avoid this vulnerability, upgrade to TinyMCE 5.10.7 or higher for TinyMCE 5.x. To avoid this vulnerability, upgrade to TinyMCE 6.3.1 or higher for TinyMCE 6.x. As a temporary workaround, ensure the images upload handler returns a valid value as per the images upload handler documentation.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2022-23494

GHSA-GG8R-XJWQ-4W92

Affected Products

Tinymce

References · 17

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/23xxx/CVE-2022-23494.json · Exploit
• https://github.com/tinymce/tinymce/commit/8bb2d2646d4e1a718fce61a775fa22e9d317b32d · Patch
• https://github.com/tinymce/tinymce/security/advisories/GHSA-gg8r-xjwq-4w92 · Patch
• https://github.com/tinymce/tinymce/commit/6923d85eba6de3e08ebc9c5a387b5abdaa21150e · Patch
• https://tiny.cloud/docs/release-notes/release-notes5107/#securityfixes · Vendor Advisory
• https://tiny.cloud/docs/tinymce/6/6.3-release-notes/#security-fixes · Vendor Advisory
• https://tiny.cloud/docs/tinymce/6/file-image-upload/#images_upload_handler · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-23494 · Security Note
• https://osv.dev/vulnerability/CVE-2022-23494 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-23494 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-gg8r-xjwq-4w92 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-23494 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-23494 · Vendor Advisory
• https://github.com/tinymce/tinymce · Note
• https://t.me/pentestingnews/31034 · Telegram Post