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CVE-2026-4186

MEDIUM CVSS 4.0: 5.1 EPSS 0.01%
Updated Mar 16, 2026
PHP
Parameter Value
CVSS 5.1 (MEDIUM)
Type CWE-94 (Code Injection), CWE-79 (Cross-Site Scripting (XSS))
Vendor PHP
Public PoC No

A vulnerability was determined in UEditor up to 1.4.3.2. This issue affects some unknown processing of the file php/controller.php?action=uploadimage of the component JSONP Callback Handler. This manipulation of the argument callback causes cross site scripting.

The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

This vulnerability only affects products that are no longer supported by the maintainer.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
Passive
Minimal interaction

Impact Assessment

Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
None
No disruption

CVSS Vector v4.0