A AegiFlow
CRITICALCVSS 10.0EPSS 0.4%

CVE-2026-59167

CVE-2026-59167 updated by NVD

Published
2026-09-24
Modified
2026-09-26
EPSS percentile
31%
Sources
github-advisory, nvd

Summary

SunEditor is a lightweight and powerful WYSIWYG editor in vanilla JavaScript with no dependencies. Prior to 2.47.11, the sanitizer in src/lib/core.js does not consistently reject namespaced or custom HTML elements, allowing event-handler attributes to remain on crafted elements. When an application renders attacker-controlled editor content and a user interacts with the element, the retained handler can execute script in the application's browser origin, enabling stored cross-site scripting, data exposure, or unauthorized browser-context actions. This issue is fixed in version 2.47.11.

Affected packages

EcosystemPackageAffected versionsFixed versions
npmsuneditor—2.47.11

Remediation: Upgrade to 2.47.11 or later.

References

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

CVE® is a registered trademark of The MITRE Corporation. CVE content reproduced under the CVE Terms of Use; copyright designation © MITRE.

EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.