CVE-2026-40286Public exploitNetwork attack vector

Stored XSS via unescaped member name rendering

Published Apr 17, 2026 · Updated Apr 17, 2026

Stored XSS in LabReDeS WeGIA before 3.6.10 allows remote attackers to execute JavaScript through a crafted member name. The Member Registration flow stores the Member Name field without neutralizing script markup, and contribuicoes.php renders it in users' browsers. Exploitation requires submitting a crafted registration value and later loading the contributions page, where the script can manipulate content and capture input.

CVSS severity7.5
High
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in LabReDeS WeGIA before 3.6.10 allows remote attackers to execute JavaScript through a crafted member name. The Member Registration flow stores the Member Name field without neutralizing script markup, and contribuicoes.php renders it in users' browsers. Exploitation requires submitting a crafted registration value and later loading the contributions page, where the script can manipulate content and capture input.

The record

CVE
CVE-2026-40286
Published
Apr 17, 2026
Updated
Apr 17, 2026
Vendor
LabReDeS - Laboratório de Redes, Desenvolvimento e Segurança
Product
WeGIA
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 17, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 3.6.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

LabReDeS - Laboratório de Redes, Desenvolvimento e Segurança · WeGIAversion=< 3.6.10

Published CVSS scores

7.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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