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CVE-2026-33135

CRITICAL CVSS 3.1: 6.1 EPSS 0.03%
Updated Mar 20, 2026
PHP
Parameter Value
CVSS 6.1 (CRITICAL)
Affected Versions before 3.6.7
Fixed In 3.6.7
Type CWE-79 (Cross-Site Scripting (XSS))
Vendor PHP
Public PoC No

WeGIA is a web manager for charitable institutions. Versions 3.6.6 and below have a Reflected Cross-Site Scripting (XSS) vulnerability in the novo_memorandoo.php endpoint. An attacker can inject arbitrary JavaScript into the sccs GET parameter, which is directly echoed into the HTML response without any sanitization or encoding.

The script /html/memorando/novo_memorandoo.php reads HTTP GET parameters to display dynamic success messages to the user. At approximately line 273, the code checks if $_GET['msg'] equals 'success'. If true, it directly concatenates $_GET['sccs'] into an HTML alert <div> and outputs it to the browser.

This issue has been fixed in version 3.6.7.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required

Impact Assessment

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

CVSS Vector v3.1

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Wegia Wegia
cpe:2.3:a:wegia:wegia:*:*:*:*:*:*:*:*
3.6.7