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CVE-2026-33135— WeGIA has Reflected Cross-Site Scripting (XSS) in `novo_memorandoo.php` via `sccs` parameter

CVSS 9.3 · Critical EPSS 0.04% · P14
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I. Basic Information for CVE-2026-33135

Vulnerability Information
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Vulnerability Title
WeGIA has Reflected Cross-Site Scripting (XSS) in `novo_memorandoo.php` via `sccs` parameter
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
WeGIA 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WeGIA是Nilson Lazarin个人开发者的一个福利机构的网络管理器。 WeGIA 3.6.6及之前版本存在安全漏洞，该漏洞源于novo_memorandoo.php端点存在反射型跨站脚本，可能导致执行任意JavaScript。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

VendorProductAffected VersionsCPESubscribe
LabRedesCefetRJWeGIA < 3.6.7 -

II. Public POCs for CVE-2026-33135

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III. Intelligence Information for CVE-2026-33135

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Same Patch Batch · LabRedesCefetRJ · 2026-03-20 · 4 CVEs total

CVE-2026-331349.3 CRITICALWeGIA has Authenticated Time-Based Blind SQL Injection in `restaurar_produto.php` via `id_
CVE-2026-331369.3 CRITICALWeGIA has Reflected Cross-Site Scripting (XSS) in `listar_memorandos_ativos.php` via `sccd
CVE-2026-33133WeGIA has an arbitrary SQL execution vulnerability via crafted backup archive

IV. Related Vulnerabilities

Same product: WeGIA
Same vendor: LabRedesCefetRJ
Same weakness: CWE-79

V. Comments for CVE-2026-33135

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