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

Quick assessment

Affected
LabRedesCefetRJ WeGIA
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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。

CVSS 9.3 · Critical EPSS 0.38% · P30

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
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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: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
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

Vendor Product Affected Versions CPE Subscribe
LabRedesCefetRJ WeGIA < 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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Patches & Fixes for CVE-2026-33135 (1)

Vendor Advisories for CVE-2026-33135 (1)

Vendor Pages for CVE-2026-33135 (1)

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

CVE-2026-33134 9.3 CRITICAL WeGIA has Authenticated Time-Based Blind SQL Injection in `restaurar_produto.php` via `id_
CVE-2026-33136 9.3 CRITICAL WeGIA has Reflected Cross-Site Scripting (XSS) in `listar_memorandos_ativos.php` via `sccd
CVE-2026-33133 WeGIA 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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