CVE-2026-3027
CWE-79Published: February 23, 2026· Updated: Feb 24, 2026
Official Description
A vulnerability was found in erzhongxmu JEEWMS up to 3.7. This affects an unknown part of the file src/main/webapp/plug-in/ueditor/jsp/getContent.jsp of the component UEditor. The manipulation of the argument myEditor results in cross site scripting. The attack can be launched remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Technical Analysis
CVE-2026-3027 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.
The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.
A proof-of-concept (PoC) exploit exists for CVE-2026-3027. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.
From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (4)
Quick Facts
Related CVEs (CWE-79)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-3027 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts